DisplayCompositor should enforce invariant that frame size and device scale factor are fixed

cc/surfaces/compositor_frame_sink_support.cc

Index: cc/surfaces/compositor_frame_sink_support.cc
diff --git a/cc/surfaces/compositor_frame_sink_support.cc b/cc/surfaces/compositor_frame_sink_support.cc
index 23e44813919b4d5a33cb8af29376fe25663acfe2..b8dc1d1f9c47261c92eb273d2412378a5755d4ac 100644
--- a/cc/surfaces/compositor_frame_sink_support.cc
+++ b/cc/surfaces/compositor_frame_sink_support.cc
@@ -204,6 +204,11 @@ void CompositorFrameSinkSupport::WillDrawSurface(
     client_->WillDrawSurface(local_surface_id, damage_rect);
 }
 
+void CompositorFrameSinkSupport::OnBadFrameReceived() {
+  if (client_)
+    client_->OnBadFrameReceived();
+}
+
 void CompositorFrameSinkSupport::OnBeginFrame(const BeginFrameArgs& args) {
   UpdateNeedsBeginFramesInternal();
   last_begin_frame_args_ = args;