Support window.opener after a process swap.

content/renderer/render_view.h

Index: content/renderer/render_view.h
diff --git a/content/renderer/render_view.h b/content/renderer/render_view.h
index 059e6817a084ed84ff14692208d2e23142a79baa..8f43708040d09603b7616d0336e585a891aea584 100644
--- a/content/renderer/render_view.h
+++ b/content/renderer/render_view.h
@@ -71,7 +71,7 @@ class WebUIBindings;
 struct ContextMenuMediaParams;
 struct PP_Flash_NetAddress;
 struct ViewHostMsg_RunFileChooser_Params;
-struct ViewMsg_ClosePage_Params;
+struct ViewMsg_SwapOut_Params;
 struct ViewMsg_Navigate_Params;
 struct ViewMsg_StopFinding_Params;
 struct WebDropData;
@@ -236,6 +236,9 @@ class RenderView : public RenderWidget,
   void AddObserver(RenderViewObserver* observer);
   void RemoveObserver(RenderViewObserver* observer);
 
+  // Swap this RenderView back in if the tab navigates back to this process.
+  void SwapIn();
+
   // Evaluates a string of JavaScript in a particular frame.
   void EvaluateScript(const string16& frame_xpath,
                       const string16& jscript,
@@ -724,7 +727,7 @@ class RenderView : public RenderWidget,
                                    IPC::ChannelHandle handle);
   void OnCancelDownload(int32 download_id);
   void OnClearFocusedNode();
-  void OnClosePage(const ViewMsg_ClosePage_Params& params);
+  void OnClosePage();
 #if defined(ENABLE_FLAPPER_HACKS)
   void OnConnectTcpACK(int request_id,
                        IPC::PlatformFileForTransit socket_for_transit,
@@ -811,6 +814,7 @@ class RenderView : public RenderWidget,
   void OnShouldClose();
   void OnStop();
   void OnStopFinding(const ViewMsg_StopFinding_Params& params);
+  void OnSwapOut(const ViewMsg_SwapOut_Params& params);
   void OnThemeChanged();
   void OnUndo();
   void OnUpdateTargetURLAck();