Organize Layout Hooks (content-side).

content/renderer/render_widget.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_RENDER_WIDGET_H_
 #define CONTENT_RENDERER_RENDER_WIDGET_H_
 
 #include <deque>
 #include <map>
 
@@ skipping 154 matching lines @@
   // IPC::Listener
   bool OnMessageReceived(const IPC::Message& msg) override;
 
   // IPC::Sender
   bool Send(IPC::Message* msg) override;
 
   // blink::WebWidgetClient
   virtual void didAutoResize(const blink::WebSize& new_size);
   virtual void initializeLayerTreeView();
   virtual blink::WebLayerTreeView* layerTreeView();
+  virtual void didFirstVisuallyNonEmptyLayout();
+  virtual void didFirstLayoutAfterFinishedParsing();
   virtual void didFocus();
   virtual void didBlur();
   virtual void didChangeCursor(const blink::WebCursorInfo&);
   virtual void closeWidgetSoon();
   virtual void show(blink::WebNavigationPolicy);
   virtual blink::WebRect windowRect();
   virtual void setToolTipText(const blink::WebString& text,
                               blink::WebTextDirection hint);
   virtual void setWindowRect(const blink::WebRect&);
   virtual blink::WebRect windowResizerRect();
@@ skipping 630 matching lines @@
   ui::MenuSourceType context_menu_source_type_;
   bool has_host_context_menu_location_;
   gfx::Point host_context_menu_location_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidget);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_WIDGET_H_