Change webkit/{fileapi,quota} code to use TaskRunner.

webkit/quota/mock_quota_manager.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 WEBKIT_QUOTA_MOCK_QUOTA_MANAGER_H_
 #define WEBKIT_QUOTA_MOCK_QUOTA_MANAGER_H_
 #pragma once
 
 #include <vector>
 #include <string>
@@ skipping 25 matching lines @@
     ~OriginInfo();
 
     GURL origin;
     StorageType type;
     int quota_client_mask;
     base::Time modified;
   };
 
   MockQuotaManager(bool is_incognito,
                    const FilePath& profile_path,
-                   base::MessageLoopProxy* io_thread,
-                   base::MessageLoopProxy* db_thread,
+                   base::SingleThreadTaskRunner* io_thread,
+                   base::SingleThreadTaskRunner* db_thread,
                    SpecialStoragePolicy* special_storage_policy);
 
   virtual ~MockQuotaManager();
 
   // Adds an origin to the canned list that will be searched through via
   // GetOriginsModifiedSince. The caller must provide |quota_client_mask|
   // which specifies the types of QuotaClients this canned origin contains
   // as a bitmask built from QuotaClient::IDs.
   bool AddOrigin(const GURL& origin,
                  StorageType type,
@@ skipping 32 matching lines @@
 
   // The list of stored origins that have been added via AddOrigin.
   std::vector<OriginInfo> origins_;
 
   DISALLOW_COPY_AND_ASSIGN(MockQuotaManager);
 };
 
 }  // namespace quota
 
 #endif  // WEBKIT_QUOTA_MOCK_QUOTA_MANAGER_H_