Update to Pipeline Metadata and Decoder Stream for Orientation Data

media/base/mock_filters.cc

Index: media/base/mock_filters.cc
diff --git a/media/base/mock_filters.cc b/media/base/mock_filters.cc
index e4faf70b3eec896f10704ef1bf89a173ed991418..42ec9bb7e1743ddd33e78a0dd1d27ae47f78753a 100644
--- a/media/base/mock_filters.cc
+++ b/media/base/mock_filters.cc
@@ -48,6 +48,10 @@ void MockDemuxerStream::set_video_decoder_config(
   video_decoder_config_ = config;
 }
 
+VideoRotation MockDemuxerStream::video_rotation() {
+  return VIDEO_ROTATION_0;
+}
+
 MockVideoDecoder::MockVideoDecoder() {
   EXPECT_CALL(*this, HasAlpha()).WillRepeatedly(Return(false));
 }