Eliminate SwapOut message parameters, keeping state in RVHM instead.

content/browser/web_contents/render_view_host_manager.h

Index: content/browser/web_contents/render_view_host_manager.h
diff --git a/content/browser/web_contents/render_view_host_manager.h b/content/browser/web_contents/render_view_host_manager.h
index d178680c11a32877b0b637418d18cd1786b48c6d..1631c8133fe9411a339d11c7600e90a5de153f04 100644
--- a/content/browser/web_contents/render_view_host_manager.h
+++ b/content/browser/web_contents/render_view_host_manager.h
@@ -206,8 +206,6 @@ class CONTENT_EXPORT RenderViewHostManager
       bool for_cross_site_transition,
       bool proceed,
       const base::TimeTicks& proceed_time) OVERRIDE;
-  virtual void OnCrossSiteResponse(int new_render_process_host_id,
-                                   int new_request_id) OVERRIDE;
 
   // NotificationObserver implementation.
   virtual void Observe(int type,
@@ -224,6 +222,10 @@ class CONTENT_EXPORT RenderViewHostManager
   // Returns the swapped out RenderViewHost for the given SiteInstance, if any.
   RenderViewHostImpl* GetSwappedOutRenderViewHost(SiteInstance* instance);
 
+  // Runs the unload handler in the current page, when we know that a pending
+  // cross-process navigation is going to commit.
+  void SwapOutOldPage();
+
  private:
   friend class RenderViewHostManagerTest;
   friend class TestWebContents;