Remove all remaining traces of MessageLoopProxy.

content/browser/dom_storage/dom_storage_context_wrapper.cc

 // Copyright 2013 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 "content/browser/dom_storage/dom_storage_context_wrapper.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 265 matching lines @@
   context_ = new DOMStorageContextImpl(
       data_path.empty() ? data_path
                         : data_path.AppendASCII(kLocalStorageDirectory),
       data_path.empty() ? data_path
                         : data_path.AppendASCII(kSessionStorageDirectory),
       special_storage_policy,
       new DOMStorageWorkerPoolTaskRunner(
           worker_pool,
           worker_pool->GetNamedSequenceToken("dom_storage_primary"),
           worker_pool->GetNamedSequenceToken("dom_storage_commit"),
-          BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO)
-              .get()));
+          BrowserThread::GetTaskRunnerForThread(BrowserThread::IO).get()));
 
   memory_pressure_listener_.reset(new base::MemoryPressureListener(
       base::Bind(&DOMStorageContextWrapper::OnMemoryPressure, this)));
 }
 
 DOMStorageContextWrapper::~DOMStorageContextWrapper() {}
 
 void DOMStorageContextWrapper::GetLocalStorageUsage(
     const GetLocalStorageUsageCallback& callback) {
   DCHECK(context_.get());
@@ skipping 93 matching lines @@
   if (memory_pressure_level ==
       base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL) {
     purge_option = DOMStorageContextImpl::PURGE_AGGRESSIVE;
   }
   context_->task_runner()->PostTask(
       FROM_HERE,
       base::Bind(&DOMStorageContextImpl::PurgeMemory, context_, purge_option));
 }
 
 }  // namespace content