Stash: Alternate prototype for NativeLayer renderer with GL fallback

gpu/command_buffer/client/context_support.h

Index: gpu/command_buffer/client/context_support.h
diff --git a/gpu/command_buffer/client/context_support.h b/gpu/command_buffer/client/context_support.h
index 64079d2d8a91f51b4060c155d0c502d4ace063f2..51be0bc90832274ae78891cee685bd898361759b 100644
--- a/gpu/command_buffer/client/context_support.h
+++ b/gpu/command_buffer/client/context_support.h
@@ -46,6 +46,13 @@ class ContextSupport {
                                     unsigned overlay_texture_id,
                                     const gfx::Rect& display_bounds,
                                     const gfx::RectF& uv_rect) = 0;
+  // Schedule a solid color overlay plane to be shown at swap time.
+  virtual void ScheduleSolidColorOverlayPlane(int z_order,
+                                              const gfx::Rect& bounds_rect,
+                                              float red,
+                                              float green,
+                                              float blue,
+                                              float alpha) = 0;
 
   virtual uint32 InsertFutureSyncPointCHROMIUM() = 0;
   virtual void RetireSyncPointCHROMIUM(uint32 sync_point) = 0;