Plumb decoded video pixel format from GPU process to renderer.

media/gpu/ipc/service/gpu_video_decode_accelerator.cc

Index: media/gpu/ipc/service/gpu_video_decode_accelerator.cc
diff --git a/media/gpu/ipc/service/gpu_video_decode_accelerator.cc b/media/gpu/ipc/service/gpu_video_decode_accelerator.cc
index 6e6ba3155a91627f58e84cbba567dd7fac831dea..e1d93db174351e206f0ee4b486fd7bac183c584f 100644
--- a/media/gpu/ipc/service/gpu_video_decode_accelerator.cc
+++ b/media/gpu/ipc/service/gpu_video_decode_accelerator.cc
@@ -237,8 +237,9 @@ void GpuVideoDecodeAccelerator::ProvidePictureBuffers(
     return;
   }
   if (!Send(new AcceleratedVideoDecoderHostMsg_ProvidePictureBuffers(
-          host_route_id_, requested_num_of_buffers, textures_per_buffer,
-          dimensions, texture_target))) {
+          host_route_id_, video_decode_accelerator_->GetOutputFormat(),
+          requested_num_of_buffers, textures_per_buffer, dimensions,
+          texture_target))) {
     DLOG(ERROR) << "Send(AcceleratedVideoDecoderHostMsg_ProvidePictureBuffers) "
                 << "failed";
   }