Oilpan: Move WebFrameWidgetImpl into Oilpan heap.

Source/web/WebFrameWidgetImpl.h

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 40 matching lines @@
 class LocalFrame;
 class Page;
 class DeprecatedPaintLayerCompositor;
 class UserGestureToken;
 class WebCompositorAnimationTimeline;
 class WebLayer;
 class WebLayerTreeView;
 class WebMouseEvent;
 class WebMouseWheelEvent;
 
-class WebFrameWidgetImpl final : public WebFrameWidget
-    , public PageWidgetEventHandler
-    , public RefCounted<WebFrameWidgetImpl> {
+class WebFrameWidgetImpl final : public RefCountedWillBeGarbageCollectedFinalized<WebFrameWidgetImpl>
+    , public WebFrameWidget
+    , public PageWidgetEventHandler {
 public:
     static WebFrameWidgetImpl* create(WebWidgetClient*, WebLocalFrame*);
     static HashSet<WebFrameWidgetImpl*>& allInstances();
 
     // WebWidget functions:
     void close() override;
     WebSize size() override;
     void willStartLiveResize() override;
     void resize(const WebSize&) override;
     void resizeVisualViewport(const WebSize&) override;
@@ skipping 67 matching lines @@
     Page* page() const { return view()->page(); }
 
     WebLayerTreeView* layerTreeView() const { return m_layerTreeView; }
 
     // Returns true if the event leads to scrolling.
     static bool mapKeyCodeForScroll(
         int keyCode,
         ScrollDirection*,
         ScrollGranularity*);
 
+    DECLARE_TRACE();
+
 private:
     friend class WebFrameWidget; // For WebFrameWidget::create.
+#if ENABLE(OILPAN)
+    friend class GarbageCollectedFinalized<WebFrameWidgetImpl>;
+#else
     friend class WTF::RefCounted<WebFrameWidgetImpl>;
+#endif
 
     explicit WebFrameWidgetImpl(WebWidgetClient*, WebLocalFrame*);
     ~WebFrameWidgetImpl();
 
     // Returns true if the event was actually processed.
     bool keyEventDefault(const WebKeyboardEvent&);
 
     // Returns true if the view was scrolled.
     bool scrollViewWithKeyboard(int keyCode, int modifiers);
 
@@ skipping 14 matching lines @@
     bool handleGestureEvent(const WebGestureEvent&) override;
     bool handleKeyEvent(const WebKeyboardEvent&) override;
     bool handleCharEvent(const WebKeyboardEvent&) override;
 
     WebViewImpl* view() const { return m_localRoot->viewImpl(); }
 
     WebWidgetClient* m_client;
 
     // WebFrameWidget is associated with a subtree of the frame tree, corresponding to a maximal
     // connected tree of LocalFrames. This member points to the root of that subtree.
-    WebLocalFrameImpl* m_localRoot;
+    RawPtrWillBeMember<WebLocalFrameImpl> m_localRoot;
 
     WebSize m_size;
 
     // If set, the (plugin) node which has mouse capture.
-    RefPtrWillBePersistent<Node> m_mouseCaptureNode;
+    RefPtrWillBeMember<Node> m_mouseCaptureNode;
     RefPtr<UserGestureToken> m_mouseCaptureGestureToken;
 
     WebLayerTreeView* m_layerTreeView;
     WebLayer* m_rootLayer;
     GraphicsLayer* m_rootGraphicsLayer;
     bool m_isAcceleratedCompositingActive;
     bool m_layerTreeViewClosed;
 
     bool m_suppressNextKeypressEvent;
 
     bool m_ignoreInputEvents;
 
     static const WebInputEvent* m_currentInputEvent;
+
+#if ENABLE(OILPAN)
+    SelfKeepAlive<WebFrameWidgetImpl> m_selfKeepAlive;
+#endif
 };
 
 DEFINE_TYPE_CASTS(WebFrameWidgetImpl, WebFrameWidget, widget, widget->forSubframe(), widget.forSubframe());
 
 } // namespace blink
 
 #endif