diff --git a/services/inputflinger/EventHub.cpp b/services/inputflinger/EventHub.cpp
index 4d9a2a0..77a474f 100644
--- a/services/inputflinger/EventHub.cpp
+++ b/services/inputflinger/EventHub.cpp
@@ -143,9 +143,9 @@
 
 EventHub::Device::Device(int fd, int32_t id, const String8& path,
         const InputDeviceIdentifier& identifier) :
-        next(NULL),
+        next(nullptr),
         fd(fd), id(id), path(path), identifier(identifier),
-        classes(0), configuration(NULL), virtualKeyMap(NULL),
+        classes(0), configuration(nullptr), virtualKeyMap(nullptr),
         ffEffectPlaying(false), ffEffectId(-1), controllerNumber(0),
         timestampOverrideSec(0), timestampOverrideUsec(0), enabled(true),
         isVirtual(fd < 0) {
@@ -200,7 +200,7 @@
 
 EventHub::EventHub(void) :
         mBuiltInKeyboardId(NO_BUILT_IN_KEYBOARD), mNextDeviceId(1), mControllerNumbers(),
-        mOpeningDevices(0), mClosingDevices(0),
+        mOpeningDevices(nullptr), mClosingDevices(nullptr),
         mNeedToSendFinishedDeviceScan(false),
         mNeedToReopenDevices(false), mNeedToScanDevices(true),
         mPendingEventCount(0), mPendingEventIndex(0), mPendingINotify(false) {
@@ -267,21 +267,21 @@
 InputDeviceIdentifier EventHub::getDeviceIdentifier(int32_t deviceId) const {
     AutoMutex _l(mLock);
     Device* device = getDeviceLocked(deviceId);
-    if (device == NULL) return InputDeviceIdentifier();
+    if (device == nullptr) return InputDeviceIdentifier();
     return device->identifier;
 }
 
 uint32_t EventHub::getDeviceClasses(int32_t deviceId) const {
     AutoMutex _l(mLock);
     Device* device = getDeviceLocked(deviceId);
-    if (device == NULL) return 0;
+    if (device == nullptr) return 0;
     return device->classes;
 }
 
 int32_t EventHub::getDeviceControllerNumber(int32_t deviceId) const {
     AutoMutex _l(mLock);
     Device* device = getDeviceLocked(deviceId);
-    if (device == NULL) return 0;
+    if (device == nullptr) return 0;
     return device->controllerNumber;
 }
 
@@ -465,7 +465,7 @@
     if (device) {
         // Check the key character map first.
         sp<KeyCharacterMap> kcm = device->getKeyCharacterMap();
-        if (kcm != NULL) {
+        if (kcm != nullptr) {
             if (!kcm->mapKey(scanCode, usageCode, outKeycode)) {
                 *outFlags = 0;
                 status = NO_ERROR;
@@ -481,7 +481,7 @@
         }
 
         if (status == NO_ERROR) {
-            if (kcm != NULL) {
+            if (kcm != nullptr) {
                 kcm->tryRemapKey(*outKeycode, metaState, outKeycode, outMetaState);
             } else {
                 *outMetaState = metaState;
@@ -581,7 +581,7 @@
     if (device) {
         return device->getKeyCharacterMap();
     }
-    return NULL;
+    return nullptr;
 }
 
 bool EventHub::setKeyboardLayoutOverlay(int32_t deviceId,
@@ -641,7 +641,7 @@
     if (identifier.uniqueId.isEmpty()) {
         // If it didn't have a unique id check for conflicts and enforce
         // uniqueness if necessary.
-        while(getDeviceByDescriptorLocked(identifier.descriptor) != NULL) {
+        while(getDeviceByDescriptorLocked(identifier.descriptor) != nullptr) {
             identifier.nonce++;
             rawDescriptor = generateDescriptor(identifier);
         }
@@ -714,7 +714,7 @@
             return device;
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 EventHub::Device* EventHub::getDeviceLocked(int32_t deviceId) const {
@@ -732,7 +732,7 @@
             return device;
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 size_t EventHub::getEvents(int timeoutMillis, RawEvent* buffer, size_t bufferSize) {
@@ -782,7 +782,7 @@
             mNeedToSendFinishedDeviceScan = true;
         }
 
-        while (mOpeningDevices != NULL) {
+        while (mOpeningDevices != nullptr) {
             Device* device = mOpeningDevices;
             ALOGV("Reporting device opened: id=%d, name=%s\n",
                  device->id, device->path.string());
@@ -1099,7 +1099,7 @@
 
 status_t EventHub::unregisterDeviceFromEpollLocked(Device* device) {
     if (device->hasValidFd()) {
-        if (epoll_ctl(mEpollFd, EPOLL_CTL_DEL, device->fd, NULL)) {
+        if (epoll_ctl(mEpollFd, EPOLL_CTL_DEL, device->fd, nullptr)) {
             ALOGW("Could not remove device fd from epoll instance.  errno=%d", errno);
             return -errno;
         }
@@ -1423,7 +1423,7 @@
 bool EventHub::isDeviceEnabled(int32_t deviceId) {
     AutoMutex _l(mLock);
     Device* device = getDeviceLocked(deviceId);
-    if (device == NULL) {
+    if (device == nullptr) {
         ALOGE("Invalid device id=%" PRId32 " provided to %s", deviceId, __func__);
         return false;
     }
@@ -1433,7 +1433,7 @@
 status_t EventHub::enableDevice(int32_t deviceId) {
     AutoMutex _l(mLock);
     Device* device = getDeviceLocked(deviceId);
-    if (device == NULL) {
+    if (device == nullptr) {
         ALOGE("Invalid device id=%" PRId32 " provided to %s", deviceId, __func__);
         return BAD_VALUE;
     }
@@ -1455,7 +1455,7 @@
 status_t EventHub::disableDevice(int32_t deviceId) {
     AutoMutex _l(mLock);
     Device* device = getDeviceLocked(deviceId);
-    if (device == NULL) {
+    if (device == nullptr) {
         ALOGE("Invalid device id=%" PRId32 " provided to %s", deviceId, __func__);
         return BAD_VALUE;
     }
@@ -1634,9 +1634,9 @@
     device->close();
 
     // Unlink for opening devices list if it is present.
-    Device* pred = NULL;
+    Device* pred = nullptr;
     bool found = false;
-    for (Device* entry = mOpeningDevices; entry != NULL; ) {
+    for (Device* entry = mOpeningDevices; entry != nullptr; ) {
         if (entry == device) {
             found = true;
             break;
@@ -1712,7 +1712,7 @@
     DIR *dir;
     struct dirent *de;
     dir = opendir(dirname);
-    if(dir == NULL)
+    if(dir == nullptr)
         return -1;
     strcpy(devname, dirname);
     filename = devname + strlen(devname);
@@ -1773,7 +1773,7 @@
             dump += StringPrintf(INDENT3 "ConfigurationFile: %s\n",
                     device->configurationFile.string());
             dump += StringPrintf(INDENT3 "HaveKeyboardLayoutOverlay: %s\n",
-                    toString(device->overlayKeyMap != NULL));
+                    toString(device->overlayKeyMap != nullptr));
         }
     } // release lock
 }
diff --git a/services/inputflinger/EventHub.h b/services/inputflinger/EventHub.h
index 66bc294..dfe3def 100644
--- a/services/inputflinger/EventHub.h
+++ b/services/inputflinger/EventHub.h
@@ -385,7 +385,7 @@
         const bool isVirtual; // set if fd < 0 is passed to constructor
 
         const sp<KeyCharacterMap>& getKeyCharacterMap() const {
-            if (combinedKeyMap != NULL) {
+            if (combinedKeyMap != nullptr) {
                 return combinedKeyMap;
             }
             return keyMap.keyCharacterMap;
diff --git a/services/inputflinger/InputApplication.cpp b/services/inputflinger/InputApplication.cpp
index 9e90631..c56dfe6 100644
--- a/services/inputflinger/InputApplication.cpp
+++ b/services/inputflinger/InputApplication.cpp
@@ -25,7 +25,7 @@
 // --- InputApplicationHandle ---
 
 InputApplicationHandle::InputApplicationHandle() :
-    mInfo(NULL) {
+    mInfo(nullptr) {
 }
 
 InputApplicationHandle::~InputApplicationHandle() {
@@ -35,7 +35,7 @@
 void InputApplicationHandle::releaseInfo() {
     if (mInfo) {
         delete mInfo;
-        mInfo = NULL;
+        mInfo = nullptr;
     }
 }
 
diff --git a/services/inputflinger/InputDispatcher.cpp b/services/inputflinger/InputDispatcher.cpp
index 18744c3..c805805 100644
--- a/services/inputflinger/InputDispatcher.cpp
+++ b/services/inputflinger/InputDispatcher.cpp
@@ -240,14 +240,14 @@
 
 InputDispatcher::InputDispatcher(const sp<InputDispatcherPolicyInterface>& policy) :
     mPolicy(policy),
-    mPendingEvent(NULL), mLastDropReason(DROP_REASON_NOT_DROPPED),
+    mPendingEvent(nullptr), mLastDropReason(DROP_REASON_NOT_DROPPED),
     mAppSwitchSawKeyDown(false), mAppSwitchDueTime(LONG_LONG_MAX),
-    mNextUnblockedEvent(NULL),
+    mNextUnblockedEvent(nullptr),
     mDispatchEnabled(false), mDispatchFrozen(false), mInputFilterEnabled(false),
     mInputTargetWaitCause(INPUT_TARGET_WAIT_CAUSE_NONE) {
     mLooper = new Looper(false);
 
-    mKeyRepeatState.lastKeyEntry = NULL;
+    mKeyRepeatState.lastKeyEntry = nullptr;
 
     policy->getDispatcherConfiguration(&mConfig);
 }
@@ -360,7 +360,7 @@
 
     // Now we have an event to dispatch.
     // All events are eventually dequeued and processed this way, even if we intend to drop them.
-    ALOG_ASSERT(mPendingEvent != NULL);
+    ALOG_ASSERT(mPendingEvent != nullptr);
     bool done = false;
     DropReason dropReason = DROP_REASON_NOT_DROPPED;
     if (!(mPendingEvent->policyFlags & POLICY_FLAG_PASS_TO_USER)) {
@@ -370,7 +370,7 @@
     }
 
     if (mNextUnblockedEvent == mPendingEvent) {
-        mNextUnblockedEvent = NULL;
+        mNextUnblockedEvent = nullptr;
     }
 
     switch (mPendingEvent->type) {
@@ -481,14 +481,14 @@
         if (motionEntry->action == AMOTION_EVENT_ACTION_DOWN
                 && (motionEntry->source & AINPUT_SOURCE_CLASS_POINTER)
                 && mInputTargetWaitCause == INPUT_TARGET_WAIT_CAUSE_APPLICATION_NOT_READY
-                && mInputTargetWaitApplicationHandle != NULL) {
+                && mInputTargetWaitApplicationHandle != nullptr) {
             int32_t displayId = motionEntry->displayId;
             int32_t x = int32_t(motionEntry->pointerCoords[0].
                     getAxisValue(AMOTION_EVENT_AXIS_X));
             int32_t y = int32_t(motionEntry->pointerCoords[0].
                     getAxisValue(AMOTION_EVENT_AXIS_Y));
             sp<InputWindowHandle> touchedWindowHandle = findTouchedWindowAtLocked(displayId, x, y);
-            if (touchedWindowHandle != NULL
+            if (touchedWindowHandle != nullptr
                     && touchedWindowHandle->inputApplicationHandle
                             != mInputTargetWaitApplicationHandle) {
                 // User touched a different application than the one we are waiting on.
@@ -534,7 +534,7 @@
             }
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 void InputDispatcher::dropInboundEventLocked(EventEntry* entry, DropReason dropReason) {
@@ -663,7 +663,7 @@
     if (mPendingEvent) {
         resetANRTimeoutsLocked();
         releaseInboundEventLocked(mPendingEvent);
-        mPendingEvent = NULL;
+        mPendingEvent = nullptr;
     }
 }
 
@@ -676,7 +676,7 @@
         setInjectionResultLocked(entry, INPUT_EVENT_INJECTION_FAILED);
     }
     if (entry == mNextUnblockedEvent) {
-        mNextUnblockedEvent = NULL;
+        mNextUnblockedEvent = nullptr;
     }
     addRecentEventLocked(entry);
     entry->release();
@@ -685,7 +685,7 @@
 void InputDispatcher::resetKeyRepeatLocked() {
     if (mKeyRepeatState.lastKeyEntry) {
         mKeyRepeatState.lastKeyEntry->release();
-        mKeyRepeatState.lastKeyEntry = NULL;
+        mKeyRepeatState.lastKeyEntry = nullptr;
     }
 }
 
@@ -807,7 +807,7 @@
         if (entry->policyFlags & POLICY_FLAG_PASS_TO_USER) {
             CommandEntry* commandEntry = postCommandLocked(
                     & InputDispatcher::doInterceptKeyBeforeDispatchingLockedInterruptible);
-            if (mFocusedWindowHandle != NULL) {
+            if (mFocusedWindowHandle != nullptr) {
                 commandEntry->inputWindowHandle = mFocusedWindowHandle;
             }
             commandEntry->keyEntry = entry;
@@ -988,7 +988,7 @@
         const sp<InputApplicationHandle>& applicationHandle,
         const sp<InputWindowHandle>& windowHandle,
         nsecs_t* nextWakeupTime, const char* reason) {
-    if (applicationHandle == NULL && windowHandle == NULL) {
+    if (applicationHandle == nullptr && windowHandle == nullptr) {
         if (mInputTargetWaitCause != INPUT_TARGET_WAIT_CAUSE_SYSTEM_NOT_READY) {
 #if DEBUG_FOCUS
             ALOGD("Waiting for system to become ready for input.  Reason: %s", reason);
@@ -1007,9 +1007,9 @@
                     reason);
 #endif
             nsecs_t timeout;
-            if (windowHandle != NULL) {
+            if (windowHandle != nullptr) {
                 timeout = windowHandle->getDispatchingTimeout(DEFAULT_INPUT_DISPATCHING_TIMEOUT);
-            } else if (applicationHandle != NULL) {
+            } else if (applicationHandle != nullptr) {
                 timeout = applicationHandle->getDispatchingTimeout(
                         DEFAULT_INPUT_DISPATCHING_TIMEOUT);
             } else {
@@ -1022,10 +1022,10 @@
             mInputTargetWaitTimeoutExpired = false;
             mInputTargetWaitApplicationHandle.clear();
 
-            if (windowHandle != NULL) {
+            if (windowHandle != nullptr) {
                 mInputTargetWaitApplicationHandle = windowHandle->inputApplicationHandle;
             }
-            if (mInputTargetWaitApplicationHandle == NULL && applicationHandle != NULL) {
+            if (mInputTargetWaitApplicationHandle == nullptr && applicationHandle != nullptr) {
                 mInputTargetWaitApplicationHandle = applicationHandle;
             }
         }
@@ -1068,7 +1068,7 @@
                 sp<Connection> connection = mConnectionsByFd.valueAt(connectionIndex);
                 sp<InputWindowHandle> windowHandle = connection->inputWindowHandle;
 
-                if (windowHandle != NULL) {
+                if (windowHandle != nullptr) {
                     const InputWindowInfo* info = windowHandle->getInfo();
                     if (info) {
                         ssize_t stateIndex = mTouchStatesByDisplay.indexOfKey(info->displayId);
@@ -1114,10 +1114,10 @@
 
     // If there is no currently focused window and no focused application
     // then drop the event.
-    if (mFocusedWindowHandle == NULL) {
-        if (mFocusedApplicationHandle != NULL) {
+    if (mFocusedWindowHandle == nullptr) {
+        if (mFocusedApplicationHandle != nullptr) {
             injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
-                    mFocusedApplicationHandle, NULL, nextWakeupTime,
+                    mFocusedApplicationHandle, nullptr, nextWakeupTime,
                     "Waiting because no window has focus but there is a "
                     "focused application that may eventually add a window "
                     "when it finishes starting up.");
@@ -1187,7 +1187,7 @@
     // Copy current touch state into mTempTouchState.
     // This state is always reset at the end of this function, so if we don't find state
     // for the specified display then our initial state will be empty.
-    const TouchState* oldState = NULL;
+    const TouchState* oldState = nullptr;
     ssize_t oldStateIndex = mTouchStatesByDisplay.indexOfKey(displayId);
     if (oldStateIndex >= 0) {
         oldState = &mTouchStatesByDisplay.valueAt(oldStateIndex);
@@ -1275,21 +1275,21 @@
         }
 
         // Figure out whether splitting will be allowed for this window.
-        if (newTouchedWindowHandle != NULL
+        if (newTouchedWindowHandle != nullptr
                 && newTouchedWindowHandle->getInfo()->supportsSplitTouch()) {
             // New window supports splitting.
             isSplit = true;
         } else if (isSplit) {
             // New window does not support splitting but we have already split events.
             // Ignore the new window.
-            newTouchedWindowHandle = NULL;
+            newTouchedWindowHandle = nullptr;
         }
 
         // Handle the case where we did not find a window.
-        if (newTouchedWindowHandle == NULL) {
+        if (newTouchedWindowHandle == nullptr) {
             // Try to assign the pointer to the first foreground window we find, if there is one.
             newTouchedWindowHandle = mTempTouchState.getFirstForegroundWindowHandle();
-            if (newTouchedWindowHandle == NULL) {
+            if (newTouchedWindowHandle == nullptr) {
                 ALOGI("Dropping event because there is no touchable window at (%d, %d).", x, y);
                 injectionResult = INPUT_EVENT_INJECTION_FAILED;
                 goto Failed;
@@ -1346,7 +1346,7 @@
             sp<InputWindowHandle> newTouchedWindowHandle =
                     findTouchedWindowAtLocked(displayId, x, y);
             if (oldTouchedWindowHandle != newTouchedWindowHandle
-                    && newTouchedWindowHandle != NULL) {
+                    && newTouchedWindowHandle != nullptr) {
 #if DEBUG_FOCUS
                 ALOGD("Touch is slipping out of window %s into window %s.",
                         oldTouchedWindowHandle->getName().c_str(),
@@ -1381,7 +1381,7 @@
 
     if (newHoverWindowHandle != mLastHoverWindowHandle) {
         // Let the previous window know that the hover sequence is over.
-        if (mLastHoverWindowHandle != NULL) {
+        if (mLastHoverWindowHandle != nullptr) {
 #if DEBUG_HOVER
             ALOGD("Sending hover exit event to window %s.",
                     mLastHoverWindowHandle->getName().c_str());
@@ -1391,7 +1391,7 @@
         }
 
         // Let the new window know that the hover sequence is starting.
-        if (newHoverWindowHandle != NULL) {
+        if (newHoverWindowHandle != nullptr) {
 #if DEBUG_HOVER
             ALOGD("Sending hover enter event to window %s.",
                     newHoverWindowHandle->getName().c_str());
@@ -1456,7 +1456,7 @@
                     touchedWindow.windowHandle, entry, "touched");
             if (!reason.empty()) {
                 injectionResult = handleTargetsNotReadyLocked(currentTime, entry,
-                        NULL, touchedWindow.windowHandle, nextWakeupTime, reason.c_str());
+                        nullptr, touchedWindow.windowHandle, nextWakeupTime, reason.c_str());
                 goto Unresponsive;
             }
         }
@@ -1504,7 +1504,7 @@
 Failed:
     // Check injection permission once and for all.
     if (injectionPermission == INJECTION_PERMISSION_UNKNOWN) {
-        if (checkInjectionPermission(NULL, entry->injectionState)) {
+        if (checkInjectionPermission(nullptr, entry->injectionState)) {
             injectionPermission = INJECTION_PERMISSION_GRANTED;
         } else {
             injectionPermission = INJECTION_PERMISSION_DENIED;
@@ -1637,10 +1637,10 @@
 bool InputDispatcher::checkInjectionPermission(const sp<InputWindowHandle>& windowHandle,
         const InjectionState* injectionState) {
     if (injectionState
-            && (windowHandle == NULL
+            && (windowHandle == nullptr
                     || windowHandle->getInfo()->ownerUid != injectionState->injectorUid)
             && !hasInjectionPermission(injectionState->injectorPid, injectionState->injectorUid)) {
-        if (windowHandle != NULL) {
+        if (windowHandle != nullptr) {
             ALOGW("Permission denied: injecting event from pid %d uid %d to window %s "
                     "owned by uid %d",
                     injectionState->injectorPid, injectionState->injectorUid,
@@ -1779,8 +1779,8 @@
 std::string InputDispatcher::getApplicationWindowLabelLocked(
         const sp<InputApplicationHandle>& applicationHandle,
         const sp<InputWindowHandle>& windowHandle) {
-    if (applicationHandle != NULL) {
-        if (windowHandle != NULL) {
+    if (applicationHandle != nullptr) {
+        if (windowHandle != nullptr) {
             std::string label(applicationHandle->getName());
             label += " - ";
             label += windowHandle->getName();
@@ -1788,7 +1788,7 @@
         } else {
             return applicationHandle->getName();
         }
-    } else if (windowHandle != NULL) {
+    } else if (windowHandle != nullptr) {
         return windowHandle->getName();
     } else {
         return "<unknown application or window>";
@@ -1796,7 +1796,7 @@
 }
 
 void InputDispatcher::pokeUserActivityLocked(const EventEntry* eventEntry) {
-    if (mFocusedWindowHandle != NULL) {
+    if (mFocusedWindowHandle != nullptr) {
         const InputWindowInfo* info = mFocusedWindowHandle->getInfo();
         if (info->inputFeatures & InputWindowInfo::INPUT_FEATURE_DISABLE_USER_ACTIVITY) {
 #if DEBUG_DISPATCH_CYCLE
@@ -2292,7 +2292,7 @@
 
             InputTarget target;
             sp<InputWindowHandle> windowHandle = getWindowHandleLocked(connection->inputChannel);
-            if (windowHandle != NULL) {
+            if (windowHandle != nullptr) {
                 const InputWindowInfo* windowInfo = windowHandle->getInfo();
                 target.xOffset = -windowInfo->frameLeft;
                 target.yOffset = -windowInfo->frameTop;
@@ -2350,7 +2350,7 @@
                 "we expected there to be %d pointers.  This probably means we received "
                 "a broken sequence of pointer ids from the input device.",
                 splitPointerCount, pointerIds.count());
-        return NULL;
+        return nullptr;
     }
 
     int32_t action = originalMotionEntry->action;
@@ -2781,7 +2781,7 @@
     lastInjectedEntry->injectionState = injectionState;
 
     bool needWake = false;
-    for (EventEntry* entry = firstInjectedEntry; entry != NULL; ) {
+    for (EventEntry* entry = firstInjectedEntry; entry != nullptr; ) {
         EventEntry* nextEntry = entry->next;
         needWake |= enqueueInboundEventLocked(entry);
         entry = nextEntry;
@@ -2918,7 +2918,7 @@
             return windowHandle;
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 bool InputDispatcher::hasWindowHandleLocked(
@@ -2946,7 +2946,7 @@
         bool foundHoveredWindow = false;
         for (size_t i = 0; i < mWindowHandles.size(); i++) {
             const sp<InputWindowHandle>& windowHandle = mWindowHandles.itemAt(i);
-            if (!windowHandle->updateInfo() || windowHandle->getInputChannel() == NULL) {
+            if (!windowHandle->updateInfo() || windowHandle->getInputChannel() == nullptr) {
                 mWindowHandles.removeAt(i--);
                 continue;
             }
@@ -2959,24 +2959,24 @@
         }
 
         if (!foundHoveredWindow) {
-            mLastHoverWindowHandle = NULL;
+            mLastHoverWindowHandle = nullptr;
         }
 
         if (mFocusedWindowHandle != newFocusedWindowHandle) {
-            if (mFocusedWindowHandle != NULL) {
+            if (mFocusedWindowHandle != nullptr) {
 #if DEBUG_FOCUS
                 ALOGD("Focus left window: %s",
                         mFocusedWindowHandle->getName().c_str());
 #endif
                 sp<InputChannel> focusedInputChannel = mFocusedWindowHandle->getInputChannel();
-                if (focusedInputChannel != NULL) {
+                if (focusedInputChannel != nullptr) {
                     CancelationOptions options(CancelationOptions::CANCEL_NON_POINTER_EVENTS,
                             "focus left window");
                     synthesizeCancelationEventsForInputChannelLocked(
                             focusedInputChannel, options);
                 }
             }
-            if (newFocusedWindowHandle != NULL) {
+            if (newFocusedWindowHandle != nullptr) {
 #if DEBUG_FOCUS
                 ALOGD("Focus entered window: %s",
                         newFocusedWindowHandle->getName().c_str());
@@ -2996,7 +2996,7 @@
 #endif
                     sp<InputChannel> touchedInputChannel =
                             touchedWindow.windowHandle->getInputChannel();
-                    if (touchedInputChannel != NULL) {
+                    if (touchedInputChannel != nullptr) {
                         CancelationOptions options(CancelationOptions::CANCEL_POINTER_EVENTS,
                                 "touched window was removed");
                         synthesizeCancelationEventsForInputChannelLocked(
@@ -3036,15 +3036,15 @@
     { // acquire lock
         AutoMutex _l(mLock);
 
-        if (inputApplicationHandle != NULL && inputApplicationHandle->updateInfo()) {
+        if (inputApplicationHandle != nullptr && inputApplicationHandle->updateInfo()) {
             if (mFocusedApplicationHandle != inputApplicationHandle) {
-                if (mFocusedApplicationHandle != NULL) {
+                if (mFocusedApplicationHandle != nullptr) {
                     resetANRTimeoutsLocked();
                     mFocusedApplicationHandle->releaseInfo();
                 }
                 mFocusedApplicationHandle = inputApplicationHandle;
             }
-        } else if (mFocusedApplicationHandle != NULL) {
+        } else if (mFocusedApplicationHandle != nullptr) {
             resetANRTimeoutsLocked();
             mFocusedApplicationHandle->releaseInfo();
             mFocusedApplicationHandle.clear();
@@ -3126,7 +3126,7 @@
 
         sp<InputWindowHandle> fromWindowHandle = getWindowHandleLocked(fromChannel);
         sp<InputWindowHandle> toWindowHandle = getWindowHandleLocked(toChannel);
-        if (fromWindowHandle == NULL || toWindowHandle == NULL) {
+        if (fromWindowHandle == nullptr || toWindowHandle == nullptr) {
 #if DEBUG_FOCUS
             ALOGD("Cannot transfer focus because from or to window not found.");
 #endif
@@ -3231,7 +3231,7 @@
     dump += StringPrintf(INDENT "DispatchEnabled: %d\n", mDispatchEnabled);
     dump += StringPrintf(INDENT "DispatchFrozen: %d\n", mDispatchFrozen);
 
-    if (mFocusedApplicationHandle != NULL) {
+    if (mFocusedApplicationHandle != nullptr) {
         dump += StringPrintf(INDENT "FocusedApplication: name='%s', dispatchingTimeout=%0.3fms\n",
                 mFocusedApplicationHandle->getName().c_str(),
                 mFocusedApplicationHandle->getDispatchingTimeout(
@@ -3240,7 +3240,7 @@
         dump += StringPrintf(INDENT "FocusedApplication: <null>\n");
     }
     dump += StringPrintf(INDENT "FocusedWindow: name='%s'\n",
-            mFocusedWindowHandle != NULL ? mFocusedWindowHandle->getName().c_str() : "<null>");
+            mFocusedWindowHandle != nullptr ? mFocusedWindowHandle->getName().c_str() : "<null>");
 
     if (!mTouchStatesByDisplay.isEmpty()) {
         dump += StringPrintf(INDENT "TouchStatesByDisplay:\n");
@@ -3551,7 +3551,7 @@
             dispatchLatency, waitDuration, reason);
 
     // Capture a record of the InputDispatcher state at the time of the ANR.
-    time_t t = time(NULL);
+    time_t t = time(nullptr);
     struct tm tm;
     localtime_r(&t, &tm);
     char timestr[64];
@@ -3606,8 +3606,8 @@
     mLock.lock();
 
     resumeAfterTargetsNotReadyTimeoutLocked(newTimeout,
-            commandEntry->inputWindowHandle != NULL
-                    ? commandEntry->inputWindowHandle->getInputChannel() : NULL);
+            commandEntry->inputWindowHandle != nullptr
+                    ? commandEntry->inputWindowHandle->getInputChannel() : nullptr);
 }
 
 void InputDispatcher::doInterceptKeyBeforeDispatchingLockedInterruptible(
@@ -3958,7 +3958,7 @@
 
 InputDispatcher::EventEntry::EventEntry(int32_t type, nsecs_t eventTime, uint32_t policyFlags) :
         refCount(1), type(type), eventTime(eventTime), policyFlags(policyFlags),
-        injectionState(NULL), dispatchInProgress(false) {
+        injectionState(nullptr), dispatchInProgress(false) {
 }
 
 InputDispatcher::EventEntry::~EventEntry() {
@@ -3977,7 +3977,7 @@
 void InputDispatcher::EventEntry::releaseInjectionState() {
     if (injectionState) {
         injectionState->release();
-        injectionState = NULL;
+        injectionState = nullptr;
     }
 }
 
@@ -4489,7 +4489,7 @@
 }
 
 const std::string InputDispatcher::Connection::getWindowName() const {
-    if (inputWindowHandle != NULL) {
+    if (inputWindowHandle != nullptr) {
         return inputWindowHandle->getName();
     }
     if (monitor) {
@@ -4515,19 +4515,19 @@
 }
 
 InputDispatcher::DispatchEntry* InputDispatcher::Connection::findWaitQueueEntry(uint32_t seq) {
-    for (DispatchEntry* entry = waitQueue.head; entry != NULL; entry = entry->next) {
+    for (DispatchEntry* entry = waitQueue.head; entry != nullptr; entry = entry->next) {
         if (entry->seq == seq) {
             return entry;
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 
 // --- InputDispatcher::CommandEntry ---
 
 InputDispatcher::CommandEntry::CommandEntry(Command command) :
-    command(command), eventTime(0), keyEntry(NULL), userActivityEventType(0),
+    command(command), eventTime(0), keyEntry(nullptr), userActivityEventType(0),
     seq(0), handled(false) {
 }
 
@@ -4618,7 +4618,7 @@
             return window.windowHandle;
         }
     }
-    return NULL;
+    return nullptr;
 }
 
 bool InputDispatcher::TouchState::isSlippery() const {
diff --git a/services/inputflinger/InputDispatcher.h b/services/inputflinger/InputDispatcher.h
index 1072eb6..31ab339 100644
--- a/services/inputflinger/InputDispatcher.h
+++ b/services/inputflinger/InputDispatcher.h
@@ -406,7 +406,7 @@
         T* prev;
 
     protected:
-        inline Link() : next(NULL), prev(NULL) { }
+        inline Link() : next(nullptr), prev(nullptr) { }
     };
 
     struct InjectionState {
@@ -441,7 +441,7 @@
 
         bool dispatchInProgress; // initially false, set to true while dispatching
 
-        inline bool isInjected() const { return injectionState != NULL; }
+        inline bool isInjected() const { return injectionState != nullptr; }
 
         void release();
 
@@ -614,7 +614,7 @@
         T* tail;
         uint32_t entryCount;
 
-        inline Queue() : head(NULL), tail(NULL), entryCount(0) {
+        inline Queue() : head(nullptr), tail(nullptr), entryCount(0) {
         }
 
         inline bool isEmpty() const {
@@ -629,7 +629,7 @@
             } else {
                 head = entry;
             }
-            entry->next = NULL;
+            entry->next = nullptr;
             tail = entry;
         }
 
@@ -641,7 +641,7 @@
             } else {
                 tail = entry;
             }
-            entry->prev = NULL;
+            entry->prev = nullptr;
             head = entry;
         }
 
@@ -664,9 +664,9 @@
             T* entry = head;
             head = entry->next;
             if (head) {
-                head->prev = NULL;
+                head->prev = nullptr;
             } else {
-                tail = NULL;
+                tail = nullptr;
             }
             return entry;
         }
diff --git a/services/inputflinger/InputReader.cpp b/services/inputflinger/InputReader.cpp
index 9a35510..5adb75c 100644
--- a/services/inputflinger/InputReader.cpp
+++ b/services/inputflinger/InputReader.cpp
@@ -258,8 +258,8 @@
 
 bool InputReaderConfiguration::getDisplayViewport(ViewportType viewportType,
         const String8* uniqueDisplayId, DisplayViewport* outViewport) const {
-    const DisplayViewport* viewport = NULL;
-    if (viewportType == ViewportType::VIEWPORT_VIRTUAL && uniqueDisplayId != NULL) {
+    const DisplayViewport* viewport = nullptr;
+    if (viewportType == ViewportType::VIEWPORT_VIRTUAL && uniqueDisplayId != nullptr) {
         for (const DisplayViewport& currentViewport : mVirtualDisplays) {
             if (currentViewport.uniqueId == *uniqueDisplayId) {
                 viewport = &currentViewport;
@@ -272,7 +272,7 @@
         viewport = &mInternalDisplay;
     }
 
-    if (viewport != NULL && viewport->displayId >= 0) {
+    if (viewport != nullptr && viewport->displayId >= 0) {
         *outViewport = *viewport;
         return true;
     }
@@ -488,7 +488,7 @@
 }
 
 void InputReader::removeDeviceLocked(nsecs_t when, int32_t deviceId) {
-    InputDevice* device = NULL;
+    InputDevice* device = nullptr;
     ssize_t deviceIndex = mDevices.indexOfKey(deviceId);
     if (deviceIndex < 0) {
         ALOGW("Ignoring spurious device removed event for deviceId %d.", deviceId);
@@ -1786,7 +1786,7 @@
 // --- MultiTouchMotionAccumulator ---
 
 MultiTouchMotionAccumulator::MultiTouchMotionAccumulator() :
-        mCurrentSlot(-1), mSlots(NULL), mSlotCount(0), mUsingSlotsProtocol(false),
+        mCurrentSlot(-1), mSlots(nullptr), mSlotCount(0), mUsingSlotsProtocol(false),
         mHaveStylus(false), mDeviceTimestamp(0) {
 }
 
@@ -2294,7 +2294,7 @@
     if (!changes || (changes & InputReaderConfiguration::CHANGE_DISPLAY_INFO)) {
         if (mParameters.orientationAware) {
             DisplayViewport dvp;
-            config->getDisplayViewport(ViewportType::VIEWPORT_INTERNAL, NULL, &dvp);
+            config->getDisplayViewport(ViewportType::VIEWPORT_INTERNAL, nullptr, &dvp);
             mViewport = dvp;
         }
     }
@@ -2705,7 +2705,7 @@
         mOrientation = DISPLAY_ORIENTATION_0;
         if (mParameters.orientationAware && mParameters.hasAssociatedDisplay) {
             DisplayViewport v;
-            if (config->getDisplayViewport(ViewportType::VIEWPORT_INTERNAL, NULL, &v)) {
+            if (config->getDisplayViewport(ViewportType::VIEWPORT_INTERNAL, nullptr, &v)) {
                 mOrientation = v.orientation;
             }
         }
@@ -2826,8 +2826,8 @@
     float hscroll = mCursorScrollAccumulator.getRelativeHWheel();
     bool scrolled = vscroll != 0 || hscroll != 0;
 
-    mWheelYVelocityControl.move(when, NULL, &vscroll);
-    mWheelXVelocityControl.move(when, &hscroll, NULL);
+    mWheelYVelocityControl.move(when, nullptr, &vscroll);
+    mWheelXVelocityControl.move(when, &hscroll, nullptr);
 
     mPointerVelocityControl.move(when, &deltaX, &deltaY);
 
@@ -2968,7 +2968,7 @@
 }
 
 void CursorInputMapper::fadePointer() {
-    if (mPointerController != NULL) {
+    if (mPointerController != nullptr) {
         mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL);
     }
 }
@@ -3020,7 +3020,7 @@
     }
     if (!changes || (InputReaderConfiguration::CHANGE_DISPLAY_INFO)) {
         DisplayViewport v;
-        if (config->getDisplayViewport(ViewportType::VIEWPORT_INTERNAL, NULL, &v)) {
+        if (config->getDisplayViewport(ViewportType::VIEWPORT_INTERNAL, nullptr, &v)) {
             mOrientation = v.orientation;
         } else {
             mOrientation = DISPLAY_ORIENTATION_0;
@@ -3517,7 +3517,7 @@
     // Get associated display dimensions.
     DisplayViewport newViewport;
     if (mParameters.hasAssociatedDisplay) {
-        const String8* uniqueDisplayId = NULL;
+        const String8* uniqueDisplayId = nullptr;
         ViewportType viewportTypeToUse;
 
         if (mParameters.associatedDisplayIsExternal) {
@@ -3621,7 +3621,7 @@
     // Create pointer controller if needed.
     if (mDeviceMode == DEVICE_MODE_POINTER ||
             (mDeviceMode == DEVICE_MODE_DIRECT && mConfig.showTouches)) {
-        if (mPointerController == NULL) {
+        if (mPointerController == nullptr) {
             mPointerController = getPolicy()->obtainPointerController(getDeviceId());
         }
     } else {
@@ -4271,7 +4271,7 @@
     mPointerSimple.reset();
     resetExternalStylus();
 
-    if (mPointerController != NULL) {
+    if (mPointerController != nullptr) {
         mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL);
         mPointerController->clearSpots();
     }
@@ -4481,7 +4481,7 @@
         dispatchPointerUsage(when, policyFlags, pointerUsage);
     } else {
         if (mDeviceMode == DEVICE_MODE_DIRECT
-                && mConfig.showTouches && mPointerController != NULL) {
+                && mConfig.showTouches && mPointerController != nullptr) {
             mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_SPOT);
             mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL);
 
@@ -5460,7 +5460,7 @@
     mPointerVelocityControl.reset();
 
     // Remove any current spots.
-    if (mPointerController != NULL) {
+    if (mPointerController != nullptr) {
         mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL);
         mPointerController->clearSpots();
     }
@@ -6323,7 +6323,7 @@
         bool down, bool hovering) {
     int32_t metaState = getContext()->getGlobalMetaState();
 
-    if (mPointerController != NULL) {
+    if (mPointerController != nullptr) {
         if (down || hovering) {
             mPointerController->setPresentation(PointerControllerInterface::PRESENTATION_POINTER);
             mPointerController->clearSpots();
@@ -6414,8 +6414,8 @@
     if (mCurrentRawState.rawVScroll || mCurrentRawState.rawHScroll) {
         float vscroll = mCurrentRawState.rawVScroll;
         float hscroll = mCurrentRawState.rawHScroll;
-        mWheelYVelocityControl.move(when, NULL, &vscroll);
-        mWheelXVelocityControl.move(when, &hscroll, NULL);
+        mWheelYVelocityControl.move(when, nullptr, &vscroll);
+        mWheelXVelocityControl.move(when, &hscroll, nullptr);
 
         // Send scroll.
         PointerCoords pointerCoords;
@@ -6522,7 +6522,7 @@
 }
 
 void TouchInputMapper::fadePointer() {
-    if (mPointerController != NULL) {
+    if (mPointerController != nullptr) {
         mPointerController->fade(PointerControllerInterface::TRANSITION_GRADUAL);
     }
 }
@@ -6557,7 +6557,7 @@
         }
     }
 
-    return NULL;
+    return nullptr;
 }
 
 void TouchInputMapper::assignPointerIds(const RawState* last, RawState* current) {
diff --git a/services/inputflinger/InputWindow.cpp b/services/inputflinger/InputWindow.cpp
index 3ae7972..0d1dfdd 100644
--- a/services/inputflinger/InputWindow.cpp
+++ b/services/inputflinger/InputWindow.cpp
@@ -66,7 +66,7 @@
 // --- InputWindowHandle ---
 
 InputWindowHandle::InputWindowHandle(const sp<InputApplicationHandle>& inputApplicationHandle) :
-    inputApplicationHandle(inputApplicationHandle), mInfo(NULL) {
+    inputApplicationHandle(inputApplicationHandle), mInfo(nullptr) {
 }
 
 InputWindowHandle::~InputWindowHandle() {
@@ -76,7 +76,7 @@
 void InputWindowHandle::releaseInfo() {
     if (mInfo) {
         delete mInfo;
-        mInfo = NULL;
+        mInfo = nullptr;
     }
 }
 
diff --git a/services/inputflinger/InputWindow.h b/services/inputflinger/InputWindow.h
index 5a48375..c481853 100644
--- a/services/inputflinger/InputWindow.h
+++ b/services/inputflinger/InputWindow.h
@@ -169,7 +169,7 @@
     }
 
     inline sp<InputChannel> getInputChannel() const {
-        return mInfo ? mInfo->inputChannel : NULL;
+        return mInfo ? mInfo->inputChannel : nullptr;
     }
 
     inline std::string getName() const {
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 4f29e3a..286cf88 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -236,7 +236,7 @@
     }
 
     virtual sp<KeyCharacterMap> getKeyboardLayoutOverlay(const InputDeviceIdentifier&) {
-        return NULL;
+        return nullptr;
     }
 
     virtual String8 getDeviceAlias(const InputDeviceIdentifier&) {
@@ -263,7 +263,7 @@
     }
 
     void assertNotifyConfigurationChangedWasCalled(
-            NotifyConfigurationChangedArgs* outEventArgs = NULL) {
+            NotifyConfigurationChangedArgs* outEventArgs = nullptr) {
         ASSERT_FALSE(mNotifyConfigurationChangedArgsQueue.empty())
                 << "Expected notifyConfigurationChanged() to have been called.";
         if (outEventArgs) {
@@ -278,7 +278,7 @@
     }
 
     void assertNotifyDeviceResetWasCalled(
-            NotifyDeviceResetArgs* outEventArgs = NULL) {
+            NotifyDeviceResetArgs* outEventArgs = nullptr) {
         ASSERT_FALSE(mNotifyDeviceResetArgsQueue.empty())
                 << "Expected notifyDeviceReset() to have been called.";
         if (outEventArgs) {
@@ -292,7 +292,7 @@
                 << "Expected notifyDeviceReset() to not have been called.";
     }
 
-    void assertNotifyKeyWasCalled(NotifyKeyArgs* outEventArgs = NULL) {
+    void assertNotifyKeyWasCalled(NotifyKeyArgs* outEventArgs = nullptr) {
         ASSERT_FALSE(mNotifyKeyArgsQueue.empty())
                 << "Expected notifyKey() to have been called.";
         if (outEventArgs) {
@@ -306,7 +306,7 @@
                 << "Expected notifyKey() to not have been called.";
     }
 
-    void assertNotifyMotionWasCalled(NotifyMotionArgs* outEventArgs = NULL) {
+    void assertNotifyMotionWasCalled(NotifyMotionArgs* outEventArgs = nullptr) {
         ASSERT_FALSE(mNotifyMotionArgsQueue.empty())
                 << "Expected notifyMotion() to have been called.";
         if (outEventArgs) {
@@ -320,7 +320,7 @@
                 << "Expected notifyMotion() to not have been called.";
     }
 
-    void assertNotifySwitchWasCalled(NotifySwitchArgs* outEventArgs = NULL) {
+    void assertNotifySwitchWasCalled(NotifySwitchArgs* outEventArgs = nullptr) {
         ASSERT_FALSE(mNotifySwitchArgsQueue.empty())
                 << "Expected notifySwitch() to have been called.";
         if (outEventArgs) {
@@ -422,7 +422,7 @@
 
     bool isDeviceEnabled(int32_t deviceId) {
         Device* device = getDevice(deviceId);
-        if (device == NULL) {
+        if (device == nullptr) {
             ALOGE("Incorrect device id=%" PRId32 " provided to %s", deviceId, __func__);
             return false;
         }
@@ -432,7 +432,7 @@
     status_t enableDevice(int32_t deviceId) {
         status_t result;
         Device* device = getDevice(deviceId);
-        if (device == NULL) {
+        if (device == nullptr) {
             ALOGE("Incorrect device id=%" PRId32 " provided to %s", deviceId, __func__);
             return BAD_VALUE;
         }
@@ -446,7 +446,7 @@
 
     status_t disableDevice(int32_t deviceId) {
         Device* device = getDevice(deviceId);
-        if (device == NULL) {
+        if (device == nullptr) {
             ALOGE("Incorrect device id=%" PRId32 " provided to %s", deviceId, __func__);
             return BAD_VALUE;
         }
@@ -651,7 +651,7 @@
                 return &device->keysByScanCode.valueAt(index);
             }
         }
-        return NULL;
+        return nullptr;
     }
 
     virtual status_t mapAxis(int32_t, int32_t, AxisInfo*) const {
@@ -781,7 +781,7 @@
     }
 
     virtual sp<KeyCharacterMap> getKeyCharacterMap(int32_t) const {
-        return NULL;
+        return nullptr;
     }
 
     virtual bool setKeyboardLayoutOverlay(int32_t, const sp<KeyCharacterMap>&) {
@@ -940,7 +940,7 @@
         mResetWasCalled = false;
     }
 
-    void assertProcessWasCalled(RawEvent* outLastEvent = NULL) {
+    void assertProcessWasCalled(RawEvent* outLastEvent = nullptr) {
         ASSERT_TRUE(mProcessWasCalled)
                 << "Expected process() to have been called.";
         if (outLastEvent) {
@@ -1039,7 +1039,7 @@
             const sp<InputReaderPolicyInterface>& policy,
             const sp<InputListenerInterface>& listener) :
             InputReader(eventHub, policy, listener),
-            mNextDevice(NULL) {
+            mNextDevice(nullptr) {
     }
 
     virtual ~InstrumentedInputReader() {
@@ -1066,7 +1066,7 @@
             const InputDeviceIdentifier& identifier, uint32_t classes) {
         if (mNextDevice) {
             InputDevice* device = mNextDevice;
-            mNextDevice = NULL;
+            mNextDevice = nullptr;
             return device;
         }
         return InputReader::createDeviceLocked(deviceId, controllerNumber, identifier, classes);
@@ -1142,9 +1142,9 @@
 
 TEST_F(InputReaderTest, GetInputDevices) {
     ASSERT_NO_FATAL_FAILURE(addDevice(1, String8("keyboard"),
-            INPUT_DEVICE_CLASS_KEYBOARD, NULL));
+            INPUT_DEVICE_CLASS_KEYBOARD, nullptr));
     ASSERT_NO_FATAL_FAILURE(addDevice(2, String8("ignored"),
-            0, NULL)); // no classes so device will be ignored
+            0, nullptr)); // no classes so device will be ignored
 
     Vector<InputDeviceInfo> inputDevices;
     mReader->getInputDevices(inputDevices);
@@ -1174,9 +1174,9 @@
     FakeInputMapper* mapper = new FakeInputMapper(device, AINPUT_SOURCE_KEYBOARD);
     device->addMapper(mapper);
     mReader->setNextDevice(device);
-    addDevice(deviceId, String8("fake"), deviceClass, NULL);
+    addDevice(deviceId, String8("fake"), deviceClass, nullptr);
 
-    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyConfigurationChangedWasCalled(NULL));
+    ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyConfigurationChangedWasCalled(nullptr));
 
     NotifyDeviceResetArgs resetArgs;
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifyDeviceResetWasCalled(&resetArgs));
@@ -1207,9 +1207,9 @@
 }
 
 TEST_F(InputReaderTest, GetKeyCodeState_ForwardsRequestsToMappers) {
-    FakeInputMapper* mapper = NULL;
+    FakeInputMapper* mapper = nullptr;
     ASSERT_NO_FATAL_FAILURE(mapper = addDeviceWithFakeInputMapper(1, 0, String8("fake"),
-            INPUT_DEVICE_CLASS_KEYBOARD, AINPUT_SOURCE_KEYBOARD, NULL));
+            INPUT_DEVICE_CLASS_KEYBOARD, AINPUT_SOURCE_KEYBOARD, nullptr));
     mapper->setKeyCodeState(AKEYCODE_A, AKEY_STATE_DOWN);
 
     ASSERT_EQ(AKEY_STATE_UNKNOWN, mReader->getKeyCodeState(0,
@@ -1234,9 +1234,9 @@
 }
 
 TEST_F(InputReaderTest, GetScanCodeState_ForwardsRequestsToMappers) {
-    FakeInputMapper* mapper = NULL;
+    FakeInputMapper* mapper = nullptr;
     ASSERT_NO_FATAL_FAILURE(mapper = addDeviceWithFakeInputMapper(1, 0, String8("fake"),
-            INPUT_DEVICE_CLASS_KEYBOARD, AINPUT_SOURCE_KEYBOARD, NULL));
+            INPUT_DEVICE_CLASS_KEYBOARD, AINPUT_SOURCE_KEYBOARD, nullptr));
     mapper->setScanCodeState(KEY_A, AKEY_STATE_DOWN);
 
     ASSERT_EQ(AKEY_STATE_UNKNOWN, mReader->getScanCodeState(0,
@@ -1261,9 +1261,9 @@
 }
 
 TEST_F(InputReaderTest, GetSwitchState_ForwardsRequestsToMappers) {
-    FakeInputMapper* mapper = NULL;
+    FakeInputMapper* mapper = nullptr;
     ASSERT_NO_FATAL_FAILURE(mapper = addDeviceWithFakeInputMapper(1, 0, String8("fake"),
-            INPUT_DEVICE_CLASS_KEYBOARD, AINPUT_SOURCE_KEYBOARD, NULL));
+            INPUT_DEVICE_CLASS_KEYBOARD, AINPUT_SOURCE_KEYBOARD, nullptr));
     mapper->setSwitchState(SW_LID, AKEY_STATE_DOWN);
 
     ASSERT_EQ(AKEY_STATE_UNKNOWN, mReader->getSwitchState(0,
@@ -1288,9 +1288,9 @@
 }
 
 TEST_F(InputReaderTest, MarkSupportedKeyCodes_ForwardsRequestsToMappers) {
-    FakeInputMapper* mapper = NULL;
+    FakeInputMapper* mapper = nullptr;
     ASSERT_NO_FATAL_FAILURE(mapper = addDeviceWithFakeInputMapper(1, 0, String8("fake"),
-            INPUT_DEVICE_CLASS_KEYBOARD, AINPUT_SOURCE_KEYBOARD, NULL));
+            INPUT_DEVICE_CLASS_KEYBOARD, AINPUT_SOURCE_KEYBOARD, nullptr));
     mapper->addSupportedKeyCode(AKEYCODE_A);
     mapper->addSupportedKeyCode(AKEYCODE_B);
 
@@ -1323,7 +1323,7 @@
 }
 
 TEST_F(InputReaderTest, LoopOnce_WhenDeviceScanFinished_SendsConfigurationChanged) {
-    addDevice(1, String8("ignored"), INPUT_DEVICE_CLASS_KEYBOARD, NULL);
+    addDevice(1, String8("ignored"), INPUT_DEVICE_CLASS_KEYBOARD, nullptr);
 
     NotifyConfigurationChangedArgs args;
 
@@ -1332,9 +1332,9 @@
 }
 
 TEST_F(InputReaderTest, LoopOnce_ForwardsRawEventsToMappers) {
-    FakeInputMapper* mapper = NULL;
+    FakeInputMapper* mapper = nullptr;
     ASSERT_NO_FATAL_FAILURE(mapper = addDeviceWithFakeInputMapper(1, 0, String8("fake"),
-            INPUT_DEVICE_CLASS_KEYBOARD, AINPUT_SOURCE_KEYBOARD, NULL));
+            INPUT_DEVICE_CLASS_KEYBOARD, AINPUT_SOURCE_KEYBOARD, nullptr));
 
     mFakeEventHub->enqueueEvent(0, 1, EV_KEY, KEY_A, 1);
     mReader->loopOnce();
@@ -1621,7 +1621,7 @@
     static void assertMotionRange(const InputDeviceInfo& info,
             int32_t axis, uint32_t source, float min, float max, float flat, float fuzz) {
         const InputDeviceInfo::MotionRange* range = info.getMotionRange(axis, source);
-        ASSERT_TRUE(range != NULL) << "Axis: " << axis << " Source: " << source;
+        ASSERT_TRUE(range != nullptr) << "Axis: " << axis << " Source: " << source;
         ASSERT_EQ(axis, range->axis) << "Axis: " << axis << " Source: " << source;
         ASSERT_EQ(source, range->source) << "Axis: " << axis << " Source: " << source;
         ASSERT_NEAR(min, range->min, EPSILON) << "Axis: " << axis << " Source: " << source;
@@ -2232,8 +2232,8 @@
     mapper->populateDeviceInfo(&info);
 
     // Initially there may not be a valid motion range.
-    ASSERT_EQ(NULL, info.getMotionRange(AINPUT_MOTION_RANGE_X, AINPUT_SOURCE_MOUSE));
-    ASSERT_EQ(NULL, info.getMotionRange(AINPUT_MOTION_RANGE_Y, AINPUT_SOURCE_MOUSE));
+    ASSERT_EQ(nullptr, info.getMotionRange(AINPUT_MOTION_RANGE_X, AINPUT_SOURCE_MOUSE));
+    ASSERT_EQ(nullptr, info.getMotionRange(AINPUT_MOTION_RANGE_Y, AINPUT_SOURCE_MOUSE));
     ASSERT_NO_FATAL_FAILURE(assertMotionRange(info,
             AINPUT_MOTION_RANGE_PRESSURE, AINPUT_SOURCE_MOUSE, 0.0f, 1.0f, 0.0f, 0.0f));