Add CookieStore::DeleteSessionCookiesAsync method.

net/cookies/cookie_store_test_helpers.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 NET_COOKIES_COOKIE_STORE_TEST_HELPERS_H_
 #define NET_COOKIES_COOKIE_STORE_TEST_HELPERS_H_
 #pragma once
 
 #include "net/cookies/cookie_monster.h"
 
@@ skipping 45 matching lines @@
 
   virtual void DeleteCookieAsync(const GURL& url,
                                  const std::string& cookie_name,
                                  const base::Closure& callback) OVERRIDE;
 
   virtual void DeleteAllCreatedBetweenAsync(
       const base::Time& delete_begin,
       const base::Time& delete_end,
       const DeleteCallback& callback) OVERRIDE;
 
+  virtual void DeleteSessionCookiesAsync(const DeleteCallback&) OVERRIDE;
+
   virtual CookieMonster* GetCookieMonster() OVERRIDE;
 
  private:
 
   // Be called immediately from CookieMonster.
 
   void GetCookiesInternalCallback(
       const std::string& cookie_line,
       const std::vector<CookieStore::CookieInfo>& cookie_info);
 
@@ skipping 20 matching lines @@
   bool did_run_;
   bool result_;
   std::string cookie_;
   std::string cookie_line_;
   std::vector<CookieStore::CookieInfo> cookie_info_;
 };
 
 }  // namespace net
 
 #endif  // NET_COOKIES_COOKIE_STORE_TEST_HELPERS_H_