Enable sensor data injection mode through adb.

Change-Id: I415cf8ff0871fa74babaf9b879c68f210298b472
(cherry picked from commit 841a5926fc9b3f9f0e654ba3aab8e43bea7de7f1)
diff --git a/libs/gui/ISensorServer.cpp b/libs/gui/ISensorServer.cpp
index 5dde9f9..f581b5c 100644
--- a/libs/gui/ISensorServer.cpp
+++ b/libs/gui/ISensorServer.cpp
@@ -77,10 +77,9 @@
         return interface_cast<ISensorEventConnection>(reply.readStrongBinder());
     }
 
-    virtual status_t enableDataInjection(int enable) {
+    virtual int isDataInjectionEnabled() {
         Parcel data, reply;
         data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
-        data.writeInt32(enable);
         remote()->transact(ENABLE_DATA_INJECTION, data, &reply);
         return reply.readInt32();
     }
@@ -121,8 +120,7 @@
         }
         case ENABLE_DATA_INJECTION: {
             CHECK_INTERFACE(ISensorServer, data, reply);
-            int32_t enable = data.readInt32();
-            status_t ret = enableDataInjection(enable);
+            int32_t ret = isDataInjectionEnabled();
             reply->writeInt32(static_cast<int32_t>(ret));
             return NO_ERROR;
         }