CookieStore: Remove reference counting.

ios/chrome/browser/browser_state/chrome_browser_state_io_data.h

 // Copyright 2015 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 IOS_CHROME_BROWSER_BROWSER_STATE_CHROME_BROWSER_STATE_IO_DATA_H_
 #define IOS_CHROME_BROWSER_BROWSER_STATE_CHROME_BROWSER_STATE_IO_DATA_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 113 matching lines @@
   // thread, and should only be called from there.
   bool GetMetricsEnabledStateOnIOThread() const;
 
  protected:
   // A URLRequestContext for apps that owns its cookie store and HTTP factory,
   // to ensure they are deleted.
   class AppRequestContext : public net::URLRequestContext {
    public:
     AppRequestContext();
 
-    void SetCookieStore(net::CookieStore* cookie_store);
+    void SetCookieStore(scoped_ptr<net::CookieStore> cookie_store);
     void SetHttpTransactionFactory(
         scoped_ptr<net::HttpTransactionFactory> http_factory);
     void SetJobFactory(scoped_ptr<net::URLRequestJobFactory> job_factory);
 
    private:
     ~AppRequestContext() override;
 
-    scoped_refptr<net::CookieStore> cookie_store_;
+    scoped_ptr<net::CookieStore> cookie_store_;
     scoped_ptr<net::HttpTransactionFactory> http_factory_;
     scoped_ptr<net::URLRequestJobFactory> job_factory_;
   };
 
   // Created on the UI thread, read on the IO thread during
   // ChromeBrowserStateIOData lazy initialization.
   struct ProfileParams {
     ProfileParams();
     ~ProfileParams();
 
@@ skipping 148 matching lines @@
 
   // TODO(jhawkins): Remove once crbug.com/102004 is fixed.
   bool initialized_on_UI_thread_;
 
   const ios::ChromeBrowserStateType browser_state_type_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeBrowserStateIOData);
 };
 
 #endif  // IOS_CHROME_BROWSER_BROWSER_STATE_CHROME_BROWSER_STATE_IO_DATA_H_