Support window.opener after a process swap.

content/browser/renderer_host/mock_render_process_host.h

Index: content/browser/renderer_host/mock_render_process_host.h
diff --git a/content/browser/renderer_host/mock_render_process_host.h b/content/browser/renderer_host/mock_render_process_host.h
index 0e7656cd6e3b35aa82f6e1c72be6215c7b4beca4..080ebad25ecce3d0baeeac8a656d652ab1a35c97 100644
--- a/content/browser/renderer_host/mock_render_process_host.h
+++ b/content/browser/renderer_host/mock_render_process_host.h
@@ -39,7 +39,7 @@ class MockRenderProcessHost : public RenderProcessHost {
   virtual bool Init(bool is_accessibility_enabled, bool is_extensions_process);
   virtual int GetNextRoutingID();
   virtual void CancelResourceRequests(int render_widget_id);
-  virtual void CrossSiteClosePageACK(const ViewMsg_ClosePage_Params& params);
+  virtual void CrossSiteSwapOutACK(const ViewMsg_SwapOut_Params& params);
   virtual bool WaitForUpdateMsg(int render_widget_id,
                                 const base::TimeDelta& max_delay,
                                 IPC::Message* msg);
@@ -47,6 +47,9 @@ class MockRenderProcessHost : public RenderProcessHost {
   virtual void WidgetRestored();
   virtual void WidgetHidden();
   virtual int VisibleWidgetCount() const;
+  virtual void AddPendingView();
+  virtual void RemovePendingView();
+  virtual int PendingViewCount() const;
   virtual void AddWord(const string16& word);
   virtual bool FastShutdownIfPossible();
   virtual bool SendWithTimeout(IPC::Message* msg, int timeout_ms);