Perform navigation policy check on UI thread for --site-per-process.

content/browser/frame_host/navigator_impl.h

 // Copyright 2013 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_FRAME_HOST_NAVIGATOR_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_IMPL_H_
 
 #include "base/memory/ref_counted.h"
 #include "content/browser/frame_host/navigation_controller_impl.h"
 #include "content/browser/frame_host/navigator.h"
 #include "content/common/content_export.h"
 
 namespace content {
 
 class NavigationControllerImpl;
 class NavigatorDelegate;
 struct LoadCommittedDetails;
 
 // This class is an implementation of Navigator, responsible for managing
 // navigations in regular browser tabs.
 class CONTENT_EXPORT NavigatorImpl : public Navigator {
  public:
   NavigatorImpl(NavigationControllerImpl* navigation_controller,
                 NavigatorDelegate* delegate);
 
   // Navigator implementation.
+  virtual NavigationController* GetController() OVERRIDE;
   virtual void DidStartProvisionalLoad(RenderFrameHostImpl* render_frame_host,
                                        int parent_routing_id,
                                        const GURL& url) OVERRIDE;
   virtual void DidFailProvisionalLoadWithError(
       RenderFrameHostImpl* render_frame_host,
       const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params)
       OVERRIDE;
   virtual void DidFailLoadWithError(
       RenderFrameHostImpl* render_frame_host,
       const GURL& url,
@@ skipping 53 matching lines @@
 
   // System time at which the current load was started.
   base::TimeTicks current_load_start_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigatorImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_NAVIGATOR_IMPL_H_