win: Fix a few minor issues found by clang.

chrome/browser/chrome_browser_main_win.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.
 
 // Contains functions used by BrowserMain() that are win32-specific.
 
 #ifndef CHROME_BROWSER_CHROME_BROWSER_MAIN_WIN_H_
 #define CHROME_BROWSER_CHROME_BROWSER_MAIN_WIN_H_
 #pragma once
 
@@ skipping 10 matching lines @@
 // Handle uninstallation when given the appropriate the command-line switch.
 // If |chrome_still_running| is true a modal dialog will be shown asking the
 // user to close the other chrome instance.
 int DoUninstallTasks(bool chrome_still_running);
 
 class ChromeBrowserMainPartsWin : public ChromeBrowserMainParts {
  public:
   explicit ChromeBrowserMainPartsWin(
       const content::MainFunctionParams& parameters);
 
-  virtual ChromeBrowserMainPartsWin::~ChromeBrowserMainPartsWin();
+  virtual ~ChromeBrowserMainPartsWin();
 
   // BrowserParts overrides.
   virtual void ToolkitInitialized() OVERRIDE;
   virtual void PreMainMessageLoopStart() OVERRIDE;
 
   // ChromeBrowserMainParts overrides.
   virtual void ShowMissingLocaleMessageBox() OVERRIDE;
 
   // Prepares the localized strings that are going to be displayed to
   // the user if the browser process dies. These strings are stored in the
@@ skipping 19 matching lines @@
   // user level Chrome.
   static bool CheckMachineLevelInstall();
 
  private:
   scoped_ptr<chrome::MediaDeviceNotificationsWindowWin>
       media_device_notifications_window_;
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserMainPartsWin);
 };
 
 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_WIN_H_