Delete widget tree (FrameView::parent_)

third_party/WebKit/Source/web/WebPluginContainerImpl.h

Index: third_party/WebKit/Source/web/WebPluginContainerImpl.h
diff --git a/third_party/WebKit/Source/web/WebPluginContainerImpl.h b/third_party/WebKit/Source/web/WebPluginContainerImpl.h
index ef1ac551dfa4c49f1fb59354fade16e5bc7de3a3..913071fcef3667f46e4b5d1dd67d4c74cfeb4b8f 100644
--- a/third_party/WebKit/Source/web/WebPluginContainerImpl.h
+++ b/third_party/WebKit/Source/web/WebPluginContainerImpl.h
@@ -77,7 +77,10 @@ class WEB_EXPORT WebPluginContainerImpl final
 
   // PluginView methods
   void SetParent(FrameView*) override;
-  FrameView* Parent() const override { return parent_; };
+  FrameView* Parent() const override;
+  FrameView* ParentFrameView() const;
+  void SetFrameOrPluginState(FrameOrPluginState) override;
+  FrameOrPluginState GetFrameOrPluginState() const { return plugin_state_; }
   void SetParentVisible(bool) override;
   WebLayer* PlatformLayer() const override;
   v8::Local<v8::Object> ScriptableObject(v8::Isolate*) override;
@@ -217,6 +220,7 @@ class WEB_EXPORT WebPluginContainerImpl final
   friend class WebPluginContainerTest;
 
   Member<FrameView> parent_;
+  FrameOrPluginState plugin_state_;
   Member<HTMLPlugInElement> element_;
   WebPlugin* web_plugin_;
   WebLayer* web_layer_;