Made MediaFilter::host_ and MediaFilter::message_loop_ private.

media/filters/ffmpeg_video_decoder_unittest.cc

Index: media/filters/ffmpeg_video_decoder_unittest.cc
diff --git a/media/filters/ffmpeg_video_decoder_unittest.cc b/media/filters/ffmpeg_video_decoder_unittest.cc
index fca238e7b72eec62ff59c8494e027c48349715be..6603b5803470ec50b55448552cd642db1ddf4526 100644
--- a/media/filters/ffmpeg_video_decoder_unittest.cc
+++ b/media/filters/ffmpeg_video_decoder_unittest.cc
@@ -79,8 +79,8 @@ class FFmpegVideoDecoderTest : public testing::Test {
     DCHECK(decoder_);
 
     // Inject a filter host and message loop and prepare a demuxer stream.
-    decoder_->SetFilterHost(&host_);
-    decoder_->SetMessageLoop(&message_loop_);
+    decoder_->set_host(&host_);
+    decoder_->set_message_loop(&message_loop_);
     demuxer_ = new StrictMock<MockFFmpegDemuxerStream>();
 
     // Manually set the thread id for tests that don't initialize the decoder.