media: Clean up MediaCodecBridge and remove subclasses

media/gpu/android_video_encode_accelerator.h

Index: media/gpu/android_video_encode_accelerator.h
diff --git a/media/gpu/android_video_encode_accelerator.h b/media/gpu/android_video_encode_accelerator.h
index 46cb5320194dcf4004883347daaecb5d54b653d6..8b3db102cd439582f8c4b6414b46b092284333da 100644
--- a/media/gpu/android_video_encode_accelerator.h
+++ b/media/gpu/android_video_encode_accelerator.h
@@ -78,7 +78,7 @@ class MEDIA_GPU_EXPORT AndroidVideoEncodeAccelerator
   // error triggers.
   std::unique_ptr<base::WeakPtrFactory<Client>> client_ptr_factory_;
 
-  std::unique_ptr<VideoCodecBridge> media_codec_;
+  std::unique_ptr<MediaCodecBridge> media_codec_;
 
   // Bitstream buffers waiting to be populated & returned to the client.
   std::vector<BitstreamBuffer> available_bitstream_buffers_;