Plumb decoded video pixel format from GPU process to renderer.

chrome/gpu/arc_gpu_video_decode_accelerator.cc

Index: chrome/gpu/arc_gpu_video_decode_accelerator.cc
diff --git a/chrome/gpu/arc_gpu_video_decode_accelerator.cc b/chrome/gpu/arc_gpu_video_decode_accelerator.cc
index b4b46b0da454249a619c6f9a6357041eeead1c85..9edc7eace6ab7f624fafd98e0afb03a1ed0521ae 100644
--- a/chrome/gpu/arc_gpu_video_decode_accelerator.cc
+++ b/chrome/gpu/arc_gpu_video_decode_accelerator.cc
@@ -233,6 +233,7 @@ void ArcGpuVideoDecodeAccelerator::Reset() {
 
 void ArcGpuVideoDecodeAccelerator::ProvidePictureBuffers(
     uint32_t requested_num_of_buffers,
+    media::VideoPixelFormat output_format,
     uint32_t textures_per_buffer,
     const gfx::Size& dimensions,
     uint32_t texture_target) {
@@ -243,7 +244,6 @@ void ArcGpuVideoDecodeAccelerator::ProvidePictureBuffers(
   coded_size_ = dimensions;
 
   VideoFormat video_format;
-  media::VideoPixelFormat output_format = vda_->GetOutputFormat();
   switch (output_format) {
     case media::PIXEL_FORMAT_I420:
     case media::PIXEL_FORMAT_YV12: