media: Clean up MediaCodecBridge and remove subclasses

media/gpu/avda_codec_allocator_unittest.cc

Index: media/gpu/avda_codec_allocator_unittest.cc
diff --git a/media/gpu/avda_codec_allocator_unittest.cc b/media/gpu/avda_codec_allocator_unittest.cc
index 8c066f214f0cc94c78d96f14b6152655433d7930..4be7e91fe7a8a8c8e8f9b1eb589d801692798729 100644
--- a/media/gpu/avda_codec_allocator_unittest.cc
+++ b/media/gpu/avda_codec_allocator_unittest.cc
@@ -48,9 +48,9 @@ class MockClient : public AVDACodecAllocatorClient {
   MOCK_METHOD0(OnSurfaceDestroyed, void());
 
   // Gmock doesn't let us mock methods taking move-only types.
-  MOCK_METHOD1(OnCodecConfiguredMock, void(VideoCodecBridge* media_codec));
+  MOCK_METHOD1(OnCodecConfiguredMock, void(MediaCodecBridge* media_codec));
   void OnCodecConfigured(
-      std::unique_ptr<VideoCodecBridge> media_codec) override {
+      std::unique_ptr<MediaCodecBridge> media_codec) override {
     OnCodecConfiguredMock(media_codec.get());
   }
 };