Introduce default implementation for TabContentsDelegate::ViewSourceForTab.

chrome/browser/ui/browser.h

 // Copyright (c) 2010 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_UI_BROWSER_H_
 #define CHROME_BROWSER_UI_BROWSER_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 760 matching lines @@
   virtual void ConfirmSetDefaultSearchProvider(
       TabContents* tab_contents,
       TemplateURL* template_url,
       TemplateURLModel* template_url_model);
   virtual void ConfirmAddSearchProvider(const TemplateURL* template_url,
                                         Profile* profile);
   virtual void ShowPageInfo(Profile* profile,
                             const GURL& url,
                             const NavigationEntry::SSLStatus& ssl,
                             bool show_history);
-  virtual void ViewSourceForTab(TabContents* source);
+  virtual void ViewSourceForTab(TabContents* source, const GURL& page_url);
   virtual bool PreHandleKeyboardEvent(const NativeWebKeyboardEvent& event,
                                         bool* is_keyboard_shortcut);
   virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event);
   virtual void ShowRepostFormWarningDialog(TabContents* tab_contents);
   virtual void ShowContentSettingsWindow(ContentSettingsType content_type);
   virtual void ShowCollectedCookiesDialog(TabContents* tab_contents);
   virtual bool ShouldAddNavigationToHistory(
       const history::HistoryAddPageArgs& add_page_args,
       NavigationType::Type navigation_type);
   virtual void OnDidGetApplicationInfo(TabContents* tab_contents,
@@ skipping 338 matching lines @@
   // and we install ourselves as an observer.
   TabRestoreService* tab_restore_service_;
 
   scoped_ptr<InstantController> instant_;
   scoped_ptr<InstantUnloadHandler> instant_unload_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_H_