Remove RenderViewHost parameter from WebContentsObserver::Did{Start|Stop}Loading.

chrome/browser/captive_portal/captive_portal_tab_helper.h

 // 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.
 
 #ifndef CHROME_BROWSER_CAPTIVE_PORTAL_CAPTIVE_PORTAL_TAB_HELPER_H_
 #define CHROME_BROWSER_CAPTIVE_PORTAL_CAPTIVE_PORTAL_TAB_HELPER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 63 matching lines @@
   void DidCommitProvisionalLoadForFrame(
       content::RenderFrameHost* render_frame_host,
       const GURL& url,
       ui::PageTransition transition_type) override;
 
   void DidFailProvisionalLoad(content::RenderFrameHost* render_frame_host,
                               const GURL& validated_url,
                               int error_code,
                               const base::string16& error_description) override;
 
-  void DidStopLoading(content::RenderViewHost* render_view_host) override;
+  void DidStopLoading() override;
 
   // content::NotificationObserver:
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // Called when a certificate interstitial error page is about to be shown.
   void OnSSLCertError(const net::SSLInfo& ssl_info);
 
   // A "Login Tab" is a tab that was originally at a captive portal login
@@ skipping 54 matching lines @@
   // cross-process navitations.  NULL when there's currently no provisional
   // load.
   content::RenderViewHost* provisional_render_view_host_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(CaptivePortalTabHelper);
 };
 
 #endif  // CHROME_BROWSER_CAPTIVE_PORTAL_CAPTIVE_PORTAL_TAB_HELPER_H_