Remove all remaining traces of MessageLoopProxy.

content/browser/fileapi/file_system_browsertest.cc

 // 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.
 
 #include <stdint.h>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/location.h"
@@ skipping 58 matching lines @@
       BrowserThread::PostTask(
           BrowserThread::IO, FROM_HERE,
           base::Bind(&FileSystemBrowserTestWithLowQuota::SetTempQuota, bytes,
                      qm));
       return;
     }
     DCHECK_CURRENTLY_ON(BrowserThread::IO);
     qm->SetTemporaryGlobalOverrideQuota(bytes, storage::QuotaCallback());
     // Don't return until the quota has been set.
     scoped_refptr<base::ThreadTestHelper> helper(new base::ThreadTestHelper(
-        BrowserThread::GetMessageLoopProxyForThread(BrowserThread::DB).get()));
+        BrowserThread::GetTaskRunnerForThread(BrowserThread::DB).get()));
     ASSERT_TRUE(helper->Run());
   }
 };
 
 IN_PROC_BROWSER_TEST_F(FileSystemBrowserTest, RequestTest) {
   SimpleTest(GetTestUrl("fileapi", "request_test.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(FileSystemBrowserTest, CreateTest) {
   SimpleTest(GetTestUrl("fileapi", "create_test.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(FileSystemBrowserTestWithLowQuota, QuotaTest) {
   SimpleTest(GetTestUrl("fileapi", "quota_test.html"));
 }
 
 }  // namespace content