Deal with frame removal by content scripts

content/renderer/mojo_bindings_controller.h

Index: content/renderer/mojo_bindings_controller.h
diff --git a/content/renderer/mojo_bindings_controller.h b/content/renderer/mojo_bindings_controller.h
index 9d4ac9b9630ade7f4a7ecbc6b1af97ee05d8568d..d26f17a85cf13dcaf546a142696a0c1cfb2fe007 100644
--- a/content/renderer/mojo_bindings_controller.h
+++ b/content/renderer/mojo_bindings_controller.h
@@ -29,6 +29,8 @@ class MojoBindingsController
       public RenderFrameObserverTracker<MojoBindingsController> {
  public:
   MojoBindingsController(RenderFrame* render_frame, bool for_layout_tests);
+  void RunScriptsAtDocumentStart();
+  void RunScriptsAtDocumentReady();
 
  private:
   ~MojoBindingsController() override;
@@ -40,8 +42,6 @@ class MojoBindingsController
   // RenderFrameObserver overrides:
   void WillReleaseScriptContext(v8::Local<v8::Context> context,
                                 int world_id) override;
-  void DidFinishDocumentLoad() override;
-  void DidCreateDocumentElement() override;
   void DidClearWindowObject() override;
 
   const bool for_layout_tests_;