Add a new resizer corner overlay.

chrome/browser/tab_contents/web_contents.h

Index: chrome/browser/tab_contents/web_contents.h
===================================================================
--- chrome/browser/tab_contents/web_contents.h	(revision 9328)
+++ chrome/browser/tab_contents/web_contents.h	(working copy)
@@ -214,7 +214,7 @@
 
   // Override the encoding and reload the page by sending down
   // ViewMsg_SetPageEncoding to the renderer. |UpdateEncoding| is kinda
-  // the opposite of this, by which 'browser' is notified of 
+  // the opposite of this, by which 'browser' is notified of
   // the encoding of the current tab from 'renderer' (determined by
   // auto-detect, http header, meta, bom detection, etc).
   void override_encoding(const std::wstring& encoding) {
@@ -308,7 +308,7 @@
                                    IPC::Message* reply_msg);
   virtual void PasswordFormsSeen(const std::vector<PasswordForm>& forms);
   virtual void AutofillFormSubmitted(const AutofillForm& form);
-  virtual void GetAutofillSuggestions(const std::wstring& field_name, 
+  virtual void GetAutofillSuggestions(const std::wstring& field_name,
       const std::wstring& user_text, int64 node_id, int request_id);
   virtual void PageHasOSDD(RenderViewHost* render_view_host,
                            int32 page_id, const GURL& url, bool autodetected);
@@ -332,7 +332,8 @@
                                         new_request_id);
   }
   virtual bool CanBlur() const;
-  virtual void RendererUnresponsive(RenderViewHost* render_view_host, 
+  virtual gfx::Rect GetRootWindowResizerRect() const;
+  virtual void RendererUnresponsive(RenderViewHost* render_view_host,
                                     bool is_during_unload);
   virtual void RendererResponsive(RenderViewHost* render_view_host);
   virtual void LoadStateChanged(const GURL& url, net::LoadState load_state);