Add UMA counter for hung renderers on cross-site navigation.

content/browser/web_contents/render_view_host_manager.cc

 // 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.
 
 #include "content/browser/web_contents/render_view_host_manager.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 177 matching lines @@
     if (pending_render_view_host_->are_navigations_suspended())
       pending_render_view_host_->SetNavigationsSuspended(false);
   } else {
     // The request has been started and paused while we're waiting for the
     // unload handler to finish.  We'll pretend that it did, by notifying the
     // IO thread to let the response continue.  The pending renderer will then
     // be swapped in as part of the usual DidNavigate logic.  (If the unload
     // handler later finishes, this call will be ignored because the state in
     // CrossSiteResourceHandler will already be cleaned up.)
     ViewMsg_SwapOut_Params params;
+    params.closing_process_id = render_view_host_->GetProcess()->GetID();
+    params.closing_route_id = render_view_host_->GetRoutingID();
     params.new_render_process_host_id =
         pending_render_view_host_->GetProcess()->GetID();
     params.new_request_id = pending_request_id;
     current_host()->GetProcess()->SimulateSwapOutACK(params);
   }
   return false;
 }
 
 void RenderViewHostManager::DidNavigateMainFrame(
     RenderViewHost* render_view_host) {
@@ skipping 757 matching lines @@
 }
 
 RenderViewHostImpl* RenderViewHostManager::GetSwappedOutRenderViewHost(
     SiteInstance* instance) {
   RenderViewHostMap::iterator iter = swapped_out_hosts_.find(instance->GetId());
   if (iter != swapped_out_hosts_.end())
     return iter->second;
 
   return NULL;
 }