Added UMA metrics for MediaSourcePlayer and MediaCodecPlayer

media/base/android/media_decoder_job.h

Index: media/base/android/media_decoder_job.h
diff --git a/media/base/android/media_decoder_job.h b/media/base/android/media_decoder_job.h
index 2503a423f877d4cbf90408047e5814898e15246c..df7f454c756dfbdff39b24ab41f42901c5ef0eee 100644
--- a/media/base/android/media_decoder_job.h
+++ b/media/base/android/media_decoder_job.h
@@ -18,6 +18,7 @@ class SingleThreadTaskRunner;
 
 namespace media {
 
+struct FrameStatistics;
 class MediaDrmBridge;
 
 // Class for managing all the decoding tasks. Each decoding task will be posted
@@ -117,7 +118,8 @@ class MediaDecoderJob {
   MediaDecoderJob(
       const scoped_refptr<base::SingleThreadTaskRunner>& decoder_task_runner,
       const base::Closure& request_data_cb,
-      const base::Closure& config_changed_cb);
+      const base::Closure& config_changed_cb,
+      FrameStatistics* frame_statistics);
 
   // Release the output buffer at index |output_buffer_index| and render it if
   // |render_output| is true. Upon completion, |callback| will be called.
@@ -154,6 +156,8 @@ class MediaDecoderJob {
 
   scoped_ptr<MediaCodecBridge> media_codec_bridge_;
 
+  FrameStatistics* frame_statistics_;
+
  private:
   friend class MediaSourcePlayerTest;