More -Wunused-private-field cleanups.

chrome/browser/extensions/api/cookies/cookies_api.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.
 
 // Defines the Chrome Extensions Cookies API functions for accessing internet
 // cookies, as specified in the extension API JSON.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_API_COOKIES_COOKIES_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_COOKIES_COOKIES_API_H_
 
@@ skipping 175 matching lines @@
   // ExtensionFunction:
   virtual bool RunImpl() OVERRIDE;
 
  private:
   void RemoveCookieOnIOThread();
   void RespondOnUIThread();
   void RemoveCookieCallback();
 
   GURL url_;
   std::string name_;
-  bool success_;
   std::string store_id_;
   scoped_refptr<net::URLRequestContextGetter> store_context_;
 };
 
 // Implements the cookies.getAllCookieStores() extension function.
 class GetAllCookieStoresFunction : public CookiesFunction {
  public:
   DECLARE_EXTENSION_FUNCTION_NAME("cookies.getAllCookieStores")
 
  protected:
   virtual ~GetAllCookieStoresFunction() {}
 
   // ExtensionFunction:
   // GetAllCookieStoresFunction is sync.
   virtual void Run() OVERRIDE;
   virtual bool RunImpl() OVERRIDE;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_COOKIES_COOKIES_API_H_