Give prerendering RVH's RenderWidgetHostViews.

chrome/browser/prerender/prerender_contents.h

 // Copyright (c) 2011 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 CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_
 #define CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/scoped_ptr.h"
 #include "base/time.h"
 #include "chrome/browser/prerender/prerender_final_status.h"
 #include "chrome/browser/tab_contents/render_view_host_delegate_helper.h"
 #include "chrome/browser/ui/app_modal_dialogs/js_modal_dialog.h"
 #include "chrome/common/view_types.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/common/notification_registrar.h"
 #include "content/common/window_container_type.h"
 #include "webkit/glue/window_open_disposition.h"
 
+class RenderViewHost;
 class TabContents;
 struct FaviconURL;
+struct ViewHostMsg_FrameNavigate_Params;
 struct WebPreferences;
-struct ViewHostMsg_FrameNavigate_Params;
 
 namespace base {
 class ProcessMetrics;
 }
 
 namespace gfx {
 class Rect;
 }
 
 namespace prerender {
@@ skipping 22 matching lines @@
         const std::vector<GURL>& alias_urls, const GURL& referrer) = 0;
 
    private:
     DISALLOW_COPY_AND_ASSIGN(Factory);
   };
 
   virtual ~PrerenderContents();
 
   static Factory* CreateFactory();
 
-  virtual void StartPrerendering();
+  // |source_render_view_host| is the RenderViewHost that initiated
+  // prerendering.  It must be non-NULL and have its own view.  It is used
+  // solely to determine the window bounds while prerendering.
+  virtual void StartPrerendering(const RenderViewHost* source_render_view_host);
 
   // Verifies that the prerendering is not using too many resources, and kills
   // it if not.
   void DestroyWhenUsingTooManyResources();
 
   RenderViewHost* render_view_host() { return render_view_host_; }
   // Allows replacing of the RenderViewHost owned by this class, including
   // replacing with a NULL value.  When a caller uses this, the caller will
   // own (and is responsible for freeing) the old RVH.
   void set_render_view_host(RenderViewHost* rvh) { render_view_host_ = rvh; }
@@ skipping 197 matching lines @@
   // Maximum amount of private memory that may be used per PrerenderContents,
   // in MB.
   static const int kMaxPrerenderPrivateMB = 100;
 
   DISALLOW_COPY_AND_ASSIGN(PrerenderContents);
 };
 
 }  // prerender
 
 #endif  // CHROME_BROWSER_PRERENDER_PRERENDER_CONTENTS_H_