Cleanup unused class/includes device(motion|orientation)

content/browser/device_sensors/device_inertial_sensor_service.h

Index: content/browser/device_sensors/device_inertial_sensor_service.h
diff --git a/content/browser/device_sensors/device_inertial_sensor_service.h b/content/browser/device_sensors/device_inertial_sensor_service.h
index df1df0af2ec85f385100f600c6e355b5154d58b7..5d13ad483b2a0eb5eaf6b09118a9018709e60afa 100644
--- a/content/browser/device_sensors/device_inertial_sensor_service.h
+++ b/content/browser/device_sensors/device_inertial_sensor_service.h
@@ -17,11 +17,10 @@
 namespace content {
 
 class DataFetcherSharedMemory;
-class RenderProcessHost;
 
-// Owns the DeviceMotionProvider (the background polling thread) and keeps
-// track of the number of consumers currently using the data (and pausing
-// the provider when not in use).
+// Owns the Device(Motion|Orientation)Provider (the background polling thread)

[timvolodine, 2014/05/21 17:53:13]

could you replace the whole comment with:
"Owns the data fetcher for Device Motion and Orientation and keeps track of the
number of consumers currently using the data. The data fetcher is stopped when
there are no consumers."

[riju_, 2014/05/22 11:34:31]

Done.

+// and keeps track of the number of consumers currently using the data (and
+// pausing the provider when not in use).
 class CONTENT_EXPORT DeviceInertialSensorService {
  public:
   // Returns the DeviceInertialSensorService singleton.