Don't leave renderer process frozen when canceling JavaScript dialogs.

content/browser/web_contents/render_view_host_manager.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_BROWSER_WEB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_
 
 #include "base/basictypes.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 46 matching lines @@
     // If you are attaching to an already-existing RenderView, you should call
     // InitWithExistingID.
     virtual bool CreateRenderViewForRenderManager(
         RenderViewHost* render_view_host, int opener_route_id) = 0;
     virtual void BeforeUnloadFiredFromRenderManager(
         bool proceed, const base::TimeTicks& proceed_time,
         bool* proceed_to_fire_unload) = 0;
     virtual void RenderProcessGoneFromRenderManager(
         RenderViewHost* render_view_host) = 0;
     virtual void UpdateRenderViewSizeForRenderManager() = 0;
+    virtual void CancelModalDialogsForRenderManager() = 0;
     virtual void NotifySwappedFromRenderManager(
         RenderViewHost* old_render_view_host) = 0;
     virtual NavigationControllerImpl&
         GetControllerForRenderManager() = 0;
 
     // Create swapped out RenderViews in the given SiteInstance for each tab in
     // the opener chain of this tab, if any.  This allows the current tab to
     // make cross-process script calls to its opener(s).  Returns the route ID
     // of the immediate opener, if one exists (otherwise MSG_ROUTING_NONE).
     virtual int CreateOpenerRenderViewsForRenderManager(
@@ skipping 275 matching lines @@
   InterstitialPageImpl* interstitial_page_;
 
   NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHostManager);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_RENDER_VIEW_HOST_MANAGER_H_