Always apply UniformMatrix4fvStreamTextureMatrixCHROMIUM matrix argument.

cc/layers/video_frame_provider_client_impl.cc

Index: cc/layers/video_frame_provider_client_impl.cc
diff --git a/cc/layers/video_frame_provider_client_impl.cc b/cc/layers/video_frame_provider_client_impl.cc
index 6f9cb8f00c46c960dc0852d78da90fcb26b6194f..751d32f83b29ee471b68dc2ba897464837f79fb0 100644
--- a/cc/layers/video_frame_provider_client_impl.cc
+++ b/cc/layers/video_frame_provider_client_impl.cc
@@ -35,14 +35,6 @@ VideoFrameProviderClientImpl::VideoFrameProviderClientImpl(
     // the call to Stop().
     provider_->SetVideoFrameProviderClient(this);
   }
-
-  // This matrix is the default transformation for stream textures, and flips
-  // on the Y axis.
-  stream_texture_matrix_ = gfx::Transform(
-      1.0, 0.0, 0.0, 0.0,
-      0.0, -1.0, 0.0, 1.0,
-      0.0, 0.0, 1.0, 0.0,
-      0.0, 0.0, 0.0, 1.0);
 }
 
 VideoFrameProviderClientImpl::~VideoFrameProviderClientImpl() {
@@ -108,12 +100,6 @@ bool VideoFrameProviderClientImpl::HasCurrentFrame() {
   return provider_ && provider_->HasCurrentFrame();
 }
 
-const gfx::Transform& VideoFrameProviderClientImpl::StreamTextureMatrix()
-    const {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  return stream_texture_matrix_;
-}
-
 void VideoFrameProviderClientImpl::StopUsingProvider() {
   {
     // Block the provider from shutting down until this client is done