cc: HUD handle context lost in Gpu raster.

cc/layers/heads_up_display_layer_impl.h

Index: cc/layers/heads_up_display_layer_impl.h
diff --git a/cc/layers/heads_up_display_layer_impl.h b/cc/layers/heads_up_display_layer_impl.h
index b9f6afcdaa8a6aeacfca6c9e0ea68fbc1e25d868..efa8121d1efbcefc2bd9417c95cd80ea8e2a90b3 100644
--- a/cc/layers/heads_up_display_layer_impl.h
+++ b/cc/layers/heads_up_display_layer_impl.h
@@ -43,9 +43,9 @@ class CC_EXPORT HeadsUpDisplayLayerImpl : public LayerImpl {
                 ResourceProvider* resource_provider) override;
   void AppendQuads(RenderPass* render_pass,
                    AppendQuadsData* append_quads_data) override;
-  void UpdateHudTexture(DrawMode draw_mode,
-                        ResourceProvider* resource_provider,
-                        ContextProvider* context_provider);
+  uint32_t UpdateHudTexture(DrawMode draw_mode,

[vmpstr, 2017/06/30 23:16:51]

Can you leave a comment on what this returns. 

+                            ResourceProvider* resource_provider,
+                            ContextProvider* context_provider);
 
   void ReleaseResources() override;