Refactors DeviceOrientation to make it more extensible

content/browser/device_orientation/data_fetcher_impl_android.h

Index: content/browser/device_orientation/data_fetcher_impl_android.h
diff --git a/content/browser/device_orientation/data_fetcher_impl_android.h b/content/browser/device_orientation/data_fetcher_impl_android.h
index 9ac498a5ccae1524dfa17005226e93ed0d2bc6e9..8a033bc2a10852aed2d6351b924af2a032ea7154 100644
--- a/content/browser/device_orientation/data_fetcher_impl_android.h
+++ b/content/browser/device_orientation/data_fetcher_impl_android.h
@@ -20,8 +20,8 @@ namespace device_orientation {
 // Android's SensorManager has a push API, whereas Chrome wants to pull data.
 // To fit them together, we store incoming sensor events in a 1-element buffer.
 // SensorManager calls SetOrientation() which pushes a new value (discarding the
-// previous value if any). Chrome calls GetOrientation() which reads the most
-// recent value. Repeated calls to GetOrientation() will return the same value.
+// previous value if any). Chrome calls GetDeviceData() which reads the most
+// recent value. Repeated calls to GetDeviceData() will return the same value.
 
 class DataFetcherImplAndroid : public DataFetcher {
  public:
@@ -39,19 +39,20 @@ class DataFetcherImplAndroid : public DataFetcher {
                       double alpha, double beta, double gamma);
 
   // Implementation of DataFetcher.
-  virtual bool GetOrientation(Orientation* orientation) OVERRIDE;
+  virtual bool GetDeviceData(DeviceData* device_data) OVERRIDE;
 
  private:
   DataFetcherImplAndroid();
+  bool GetOrientation(Orientation* orientation);
 
   // Wrappers for JNI methods.
   bool Start(int rate_in_milliseconds);
   void Stop();
 
-  // Value returned by GetOrientation.
+  // Value returned by GetDeviceData.
   scoped_ptr<Orientation> current_orientation_;
 
-  // 1-element buffer, written by GotOrientation, read by GetOrientation.
+  // 1-element buffer, written by GotOrientation, read by GetDeviceData.
   base::Lock next_orientation_lock_;
   scoped_ptr<Orientation> next_orientation_;