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

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #if defined(OS_WIN)
@@ skipping 613 matching lines @@
 }
 
 int RenderProcessHostImpl::GetNextRoutingID() {
   return widget_helper_->GetNextRoutingID();
 }
 
 void RenderProcessHostImpl::CancelResourceRequests(int render_widget_id) {
   widget_helper_->CancelResourceRequests(render_widget_id);
 }
 
-void RenderProcessHostImpl::CrossSiteSwapOutACK(
+void RenderProcessHostImpl::SimulateSwapOutACK(
     const ViewMsg_SwapOut_Params& params) {
-  widget_helper_->CrossSiteSwapOutACK(params);
+  widget_helper_->SimulateSwapOutACK(params);
 }
 
 bool RenderProcessHostImpl::WaitForBackingStoreMsg(
     int render_widget_id,
     const base::TimeDelta& max_delay,
     IPC::Message* msg) {
   // The post task to this thread with the process id could be in queue, and we
   // don't want to dispatch a message before then since it will need the handle.
   if (child_process_launcher_.get() && child_process_launcher_->IsStarting())
     return false;
@@ skipping 898 matching lines @@
       const gfx::Size& size,
       int32 gpu_process_host_id) {
   TRACE_EVENT0("renderer_host",
                "RenderWidgetHostImpl::OnCompositorSurfaceBuffersSwappedNoHost");
   RenderWidgetHostImpl::AcknowledgeBufferPresent(route_id,
                                                  gpu_process_host_id,
                                                  0);
 }
 
 }  // namespace content