Fix VideoDecoderVpx to use pixel format the consumer wants.

remoting/codec/video_decoder_verbatim.cc

Index: remoting/codec/video_decoder_verbatim.cc
diff --git a/remoting/codec/video_decoder_verbatim.cc b/remoting/codec/video_decoder_verbatim.cc
index 42505bd71e9f330fca58a0f583f8c09ff95eef34..d5d308cf804faa02bd8e10e7fbb6b59309a07257 100644
--- a/remoting/codec/video_decoder_verbatim.cc
+++ b/remoting/codec/video_decoder_verbatim.cc
@@ -20,6 +20,11 @@ static const int kBytesPerPixel = 4;
 VideoDecoderVerbatim::VideoDecoderVerbatim() {}
 VideoDecoderVerbatim::~VideoDecoderVerbatim() {}
 
+void VideoDecoderVerbatim::SetPixelFormat(
+    VideoDecoder::PixelFormat pixel_format) {
+  NOTIMPLEMENTED();
+}
+
 bool VideoDecoderVerbatim::DecodePacket(const VideoPacket& packet,
                                         webrtc::DesktopFrame* frame) {
   webrtc::DesktopRegion* region = frame->mutable_updated_region();