AAPT2: Rename to match new style

Use Google3 naming style to match new
projects' and open source google projects' style.

Preferred to do this in a massive CL so as to avoid
style inconsistencies that plague legacy code bases.
This is a relatively NEW code base, may as well keep
it up to date.

Test: name/style refactor - existing tests pass
Change-Id: Ie80ecb78d46ec53efdfca2336bb57d96cbb7fb87
diff --git a/tools/aapt2/link/VersionCollapser.cpp b/tools/aapt2/link/VersionCollapser.cpp
index 61a1f86..3df5899 100644
--- a/tools/aapt2/link/VersionCollapser.cpp
+++ b/tools/aapt2/link/VersionCollapser.cpp
@@ -14,50 +14,51 @@
  * limitations under the License.
  */
 
-#include "ResourceTable.h"
 #include "link/Linkers.h"
 
 #include <algorithm>
 #include <vector>
 
+#include "ResourceTable.h"
+
 namespace aapt {
 
 template <typename Iterator, typename Pred>
 class FilterIterator {
  public:
   FilterIterator(Iterator begin, Iterator end, Pred pred = Pred())
-      : mCurrent(begin), mEnd(end), mPred(pred) {
-    advance();
+      : current_(begin), end_(end), pred_(pred) {
+    Advance();
   }
 
-  bool hasNext() { return mCurrent != mEnd; }
+  bool HasNext() { return current_ != end_; }
 
-  Iterator nextIter() {
-    Iterator iter = mCurrent;
-    ++mCurrent;
-    advance();
+  Iterator NextIter() {
+    Iterator iter = current_;
+    ++current_;
+    Advance();
     return iter;
   }
 
-  typename Iterator::reference next() { return *nextIter(); }
+  typename Iterator::reference Next() { return *NextIter(); }
 
  private:
-  void advance() {
-    for (; mCurrent != mEnd; ++mCurrent) {
-      if (mPred(*mCurrent)) {
+  void Advance() {
+    for (; current_ != end_; ++current_) {
+      if (pred_(*current_)) {
         return;
       }
     }
   }
 
-  Iterator mCurrent, mEnd;
-  Pred mPred;
+  Iterator current_, end_;
+  Pred pred_;
 };
 
 template <typename Iterator, typename Pred>
-FilterIterator<Iterator, Pred> makeFilterIterator(Iterator begin,
-                                                  Iterator end = Iterator(),
-                                                  Pred pred = Pred()) {
+FilterIterator<Iterator, Pred> make_filter_iterator(Iterator begin,
+                                                    Iterator end = Iterator(),
+                                                    Pred pred = Pred()) {
   return FilterIterator<Iterator, Pred>(begin, end, pred);
 }
 
@@ -68,7 +69,7 @@
  * next smallest
  * one will be kept.
  */
-static void collapseVersions(int minSdk, ResourceEntry* entry) {
+static void CollapseVersions(int min_sdk, ResourceEntry* entry) {
   // First look for all sdks less than minSdk.
   for (auto iter = entry->values.rbegin(); iter != entry->values.rend();
        ++iter) {
@@ -78,15 +79,14 @@
     }
 
     const ConfigDescription& config = (*iter)->config;
-    if (config.sdkVersion <= minSdk) {
+    if (config.sdkVersion <= min_sdk) {
       // This is the first configuration we've found with a smaller or equal SDK
       // level
       // to the minimum. We MUST keep this one, but remove all others we find,
       // which get
       // overridden by this one.
 
-      ConfigDescription configWithoutSdk = config;
-      configWithoutSdk.sdkVersion = 0;
+      ConfigDescription config_without_sdk = config.CopyWithoutSdkVersion();
       auto pred = [&](const std::unique_ptr<ResourceConfigValue>& val) -> bool {
         // Check that the value hasn't already been marked for removal.
         if (!val) {
@@ -94,16 +94,16 @@
         }
 
         // Only return Configs that differ in SDK version.
-        configWithoutSdk.sdkVersion = val->config.sdkVersion;
-        return configWithoutSdk == val->config &&
-               val->config.sdkVersion <= minSdk;
+        config_without_sdk.sdkVersion = val->config.sdkVersion;
+        return config_without_sdk == val->config &&
+               val->config.sdkVersion <= min_sdk;
       };
 
       // Remove the rest that match.
-      auto filterIter =
-          makeFilterIterator(iter + 1, entry->values.rend(), pred);
-      while (filterIter.hasNext()) {
-        filterIter.next() = {};
+      auto filter_iter =
+          make_filter_iterator(iter + 1, entry->values.rend(), pred);
+      while (filter_iter.HasNext()) {
+        filter_iter.Next() = {};
       }
     }
   }
@@ -121,16 +121,16 @@
   // struct
   // and take up less space in the resources.arsc table.
   bool modified = false;
-  for (std::unique_ptr<ResourceConfigValue>& configValue : entry->values) {
-    if (configValue->config.sdkVersion != 0 &&
-        configValue->config.sdkVersion <= minSdk) {
+  for (std::unique_ptr<ResourceConfigValue>& config_value : entry->values) {
+    if (config_value->config.sdkVersion != 0 &&
+        config_value->config.sdkVersion <= min_sdk) {
       // Override the resource with a Configuration without an SDK.
-      std::unique_ptr<ResourceConfigValue> newValue =
+      std::unique_ptr<ResourceConfigValue> new_value =
           util::make_unique<ResourceConfigValue>(
-              configValue->config.copyWithoutSdkVersion(),
-              configValue->product);
-      newValue->value = std::move(configValue->value);
-      configValue = std::move(newValue);
+              config_value->config.CopyWithoutSdkVersion(),
+              config_value->product);
+      new_value->value = std::move(config_value->value);
+      config_value = std::move(new_value);
 
       modified = true;
     }
@@ -138,8 +138,7 @@
 
   if (modified) {
     // We've modified the keys (ConfigDescription) by changing the sdkVersion to
-    // 0.
-    // We MUST re-sort to ensure ordering guarantees hold.
+    // 0. We MUST re-sort to ensure ordering guarantees hold.
     std::sort(entry->values.begin(), entry->values.end(),
               [](const std::unique_ptr<ResourceConfigValue>& a,
                  const std::unique_ptr<ResourceConfigValue>& b) -> bool {
@@ -148,12 +147,12 @@
   }
 }
 
-bool VersionCollapser::consume(IAaptContext* context, ResourceTable* table) {
-  const int minSdk = context->getMinSdkVersion();
+bool VersionCollapser::Consume(IAaptContext* context, ResourceTable* table) {
+  const int min_sdk = context->GetMinSdkVersion();
   for (auto& package : table->packages) {
     for (auto& type : package->types) {
       for (auto& entry : type->entries) {
-        collapseVersions(minSdk, entry.get());
+        CollapseVersions(min_sdk, entry.get());
       }
     }
   }