Added UMA metrics for MediaSourcePlayer and MediaCodecPlayer

media/base/android/media_source_player.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BASE_ANDROID_MEDIA_SOURCE_PLAYER_H_
 #define MEDIA_BASE_ANDROID_MEDIA_SOURCE_PLAYER_H_
 
 #include <jni.h>
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/android/scoped_java_ref.h"
 #include "base/callback.h"
 #include "base/cancelable_callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread.h"
 #include "base/time/default_tick_clock.h"
 #include "base/time/time.h"
 #include "media/base/android/demuxer_android.h"
 #include "media/base/android/media_codec_bridge.h"
 #include "media/base/android/media_decoder_job.h"
 #include "media/base/android/media_drm_bridge.h"
 #include "media/base/android/media_player_android.h"
+#include "media/base/android/media_statistics.h"
 #include "media/base/media_export.h"
 #include "media/base/time_delta_interpolator.h"
 
 namespace media {
 
 class AudioDecoderJob;
 class VideoDecoderJob;
 
 // This class handles media source extensions on Android. It uses Android
 // MediaCodec to decode audio and video streams in two separate threads.
@@ skipping 225 matching lines @@
   // not added.
   bool is_waiting_for_audio_decoder_;
   bool is_waiting_for_video_decoder_;
 
   // Test-only callback for hooking the completion of the next decode cycle.
   base::Closure decode_callback_for_testing_;
 
   // Whether audio or video decoder is in the process of prerolling.
   bool prerolling_;
 
+  // Gathers and reports playback quality statistics to UMA.
+  // Use pointer to enable replacement of this object for tests.
+  scoped_ptr<MediaStatistics> media_stat_;
+
   // Weak pointer passed to media decoder jobs for callbacks.
   base::WeakPtr<MediaSourcePlayer> weak_this_;
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<MediaSourcePlayer> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaSourcePlayer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_ANDROID_MEDIA_SOURCE_PLAYER_H_