media: Clean up MediaCodecBridge and remove subclasses

media/gpu/android_video_decode_accelerator.h

Index: media/gpu/android_video_decode_accelerator.h
diff --git a/media/gpu/android_video_decode_accelerator.h b/media/gpu/android_video_decode_accelerator.h
index 65fe867f101809f408cf76af2bc169651e0aab15..e343956771142ed96989a8cca4f4d4d42d219f66 100644
--- a/media/gpu/android_video_decode_accelerator.h
+++ b/media/gpu/android_video_decode_accelerator.h
@@ -78,7 +78,7 @@ class MEDIA_GPU_EXPORT AndroidVideoDecodeAccelerator
   void OnSurfaceAvailable(bool success) override;
   void OnSurfaceDestroyed() override;
   void OnCodecConfigured(
-      std::unique_ptr<VideoCodecBridge> media_codec) override;
+      std::unique_ptr<MediaCodecBridge> media_codec) override;
 
  private:
   friend class AVDAManager;
@@ -137,7 +137,7 @@ class MEDIA_GPU_EXPORT AndroidVideoDecodeAccelerator
 
   // Instantiate a media codec using |codec_config|.
   // This may be called on any thread.
-  static std::unique_ptr<VideoCodecBridge> ConfigureMediaCodecOnAnyThread(
+  static std::unique_ptr<MediaCodecBridge> ConfigureMediaCodecOnAnyThread(
       scoped_refptr<CodecConfig> codec_config);
 
   // Sends the decoded frame specified by |codec_buffer_index| to the client.
@@ -256,7 +256,7 @@ class MEDIA_GPU_EXPORT AndroidVideoDecodeAccelerator
   std::queue<int32_t> free_picture_ids_;
 
   // The low-level decoder which Android SDK provides.
-  std::unique_ptr<VideoCodecBridge> media_codec_;
+  std::unique_ptr<MediaCodecBridge> media_codec_;
 
   // Set to true after requesting picture buffers to the client.
   bool picturebuffers_requested_;