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

chrome/browser/extensions/api/identity/web_auth_flow.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_EXTENSIONS_API_IDENTITY_WEB_AUTH_FLOW_H_
 #define CHROME_BROWSER_EXTENSIONS_API_IDENTITY_WEB_AUTH_FLOW_H_
 
 #include <string>
 
 #include "content/public/browser/notification_observer.h"
@@ skipping 83 matching lines @@
   // ::AppWindowRegistry::Observer implementation.
   void OnAppWindowAdded(AppWindow* app_window) override;
   void OnAppWindowRemoved(AppWindow* app_window) override;
 
   // NotificationObserver implementation.
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // WebContentsObserver implementation.
-  void DidStopLoading(content::RenderViewHost* render_view_host) override;
+  void DidStopLoading() override;
   void DidNavigateMainFrame(
       const content::LoadCommittedDetails& details,
       const content::FrameNavigateParams& params) override;
   void RenderProcessGone(base::TerminationStatus status) override;
   void DidStartProvisionalLoadForFrame(
       content::RenderFrameHost* render_frame_host,
       const GURL& validated_url,
       bool is_error_page,
       bool is_iframe_srcdoc) override;
   void DidFailProvisionalLoad(content::RenderFrameHost* render_frame_host,
@@ skipping 14 matching lines @@
   bool embedded_window_created_;
 
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(WebAuthFlow);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_IDENTITY_WEB_AUTH_FLOW_H_