Plumb decoded video pixel format from GPU process to renderer.

media/gpu/ipc/service/gpu_video_decode_accelerator.h

Index: media/gpu/ipc/service/gpu_video_decode_accelerator.h
diff --git a/media/gpu/ipc/service/gpu_video_decode_accelerator.h b/media/gpu/ipc/service/gpu_video_decode_accelerator.h
index 0201c6e187dadd6e6d2d8f3cf989a240055aff33..44c9f2e27b6ed782cdd14d57543b0b35c9cdbc86 100644
--- a/media/gpu/ipc/service/gpu_video_decode_accelerator.h
+++ b/media/gpu/ipc/service/gpu_video_decode_accelerator.h
@@ -57,6 +57,7 @@ class GpuVideoDecodeAccelerator
   // media::VideoDecodeAccelerator::Client implementation.
   void NotifyInitializationComplete(bool success) override;
   void ProvidePictureBuffers(uint32_t requested_num_of_buffers,
+                             VideoPixelFormat format,
                              uint32_t textures_per_buffer,
                              const gfx::Size& dimensions,
                              uint32_t texture_target) override;