Send overlay promotion hints from to GLStreamTextureImage.

gpu/command_buffer/service/gl_stream_texture_image.h

Index: gpu/command_buffer/service/gl_stream_texture_image.h
diff --git a/gpu/command_buffer/service/gl_stream_texture_image.h b/gpu/command_buffer/service/gl_stream_texture_image.h
index daaa158ed02925664c1e6c17fd75e157e848bf9e..5ab4f751601511ba4e94f281d3484db0714bf4cf 100644
--- a/gpu/command_buffer/service/gl_stream_texture_image.h
+++ b/gpu/command_buffer/service/gl_stream_texture_image.h
@@ -25,6 +25,10 @@ class GPU_EXPORT GLStreamTextureImage : public gl::GLImage {
 
   void Flush() override {}
 
+  virtual void NotifyPromotionHint(bool promotion_hint,
+                                   int display_x,
+                                   int display_y) {}
+
  protected:
   ~GLStreamTextureImage() override {}