components: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

components/signin/core/browser/webdata/token_web_data.h

 // Copyright 2014 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.
 
 // Chromium settings and storage represent user-selected preferences and
 // information and MUST not be extracted, overwritten or modified except
 // through Chromium defined APIs.
 
 #ifndef COMPONENTS_SIGNIN_CORE_BROWSER_WEBDATA_TOKEN_WEB_DATA_H__
 #define COMPONENTS_SIGNIN_CORE_BROWSER_WEBDATA_TOKEN_WEB_DATA_H__
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
 #include "base/memory/ref_counted.h"
 #include "components/webdata/common/web_data_results.h"
 #include "components/webdata/common/web_data_service_base.h"
 #include "components/webdata/common/web_data_service_consumer.h"
 #include "components/webdata/common/web_database.h"
 
 namespace base {
-class MessageLoopProxy;
+class SingleThreadTaskRunner;
 }
 
 class TokenWebDataBackend;
 class WebDatabaseService;
 class WebDataServiceConsumer;
 
 // TokenWebData is a data repository for storage of authentication tokens.
 
 class TokenWebData : public WebDataServiceBase {
  public:
   TokenWebData(scoped_refptr<WebDatabaseService> wdbs,
-               scoped_refptr<base::MessageLoopProxy> ui_thread,
-               scoped_refptr<base::MessageLoopProxy> db_thread,
+               scoped_refptr<base::SingleThreadTaskRunner> ui_thread,
+               scoped_refptr<base::SingleThreadTaskRunner> db_thread,
                const ProfileErrorCallback& callback);
 
-  TokenWebData(scoped_refptr<base::MessageLoopProxy> ui_thread,
-               scoped_refptr<base::MessageLoopProxy> db_thread);
+  TokenWebData(scoped_refptr<base::SingleThreadTaskRunner> ui_thread,
+               scoped_refptr<base::SingleThreadTaskRunner> db_thread);
 
   // Set a token to use for a specified service.
   void SetTokenForService(const std::string& service,
                           const std::string& token);
 
   // Remove all tokens stored in the web database.
   void RemoveAllTokens();
 
   // Removes a token related to |service| from the web database.
   void RemoveTokenForService(const std::string& service);
 
   // Null on failure. Success is WDResult<std::vector<std::string> >
   virtual Handle GetAllTokens(WebDataServiceConsumer* consumer);
 
  protected:
   // For unit tests, passes a null callback.
   TokenWebData();
 
   ~TokenWebData() override;
 
  private:
   scoped_refptr<TokenWebDataBackend> token_backend_;
 
   DISALLOW_COPY_AND_ASSIGN(TokenWebData);
 };
 
 #endif  // COMPONENTS_SIGNIN_CORE_BROWSER_WEBDATA_TOKEN_WEB_DATA_H__