Usage of ThreadTaskRunner in lieu of in [chrome/browser/sync],[components/sync_driver]

chrome/browser/sync/profile_sync_auth_provider.cc

 // 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.
 
 #include "chrome/browser/sync/profile_sync_auth_provider.h"
 
 #include "base/bind.h"
 #include "base/location.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/single_thread_task_runner.h"
+#include "base/thread_task_runner_handle.h"
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "google_apis/gaia/gaia_constants.h"
 
 // This is thin proxy class for forwarding calls between sync and UI threads.
 // The main purpose is to hide the fact that ProfileSyncAuthProvider and
 // SyncThreadProxy have independent lifetimes. If ProfileSyncAuthProvider is
 // destroyed first calls to RequestAccessToken will never complete. This is fine
 // since sync thread is not blocked and is in the process of shutdown anyway.
 class ProfileSyncAuthProvider::SyncThreadProxy
     : public syncer::SyncAuthProvider,
@@ skipping 26 matching lines @@
 }
 
 void ProfileSyncAuthProvider::SyncThreadProxy::RequestAccessToken(
     const RequestTokenCallback& callback) {
   DCHECK(CalledOnValidThread());
   provider_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&ProfileSyncAuthProvider::RequestAccessToken,
                  provider_impl_,
                  callback,
-                 base::MessageLoopProxy::current()));
+                 base::ThreadTaskRunnerHandle::Get()));
 }
 
 void ProfileSyncAuthProvider::SyncThreadProxy::InvalidateAccessToken(
     const std::string& token) {
   DCHECK(CalledOnValidThread());
   provider_task_runner_->PostTask(
       FROM_HERE,
       base::Bind(&ProfileSyncAuthProvider::InvalidateAccessToken,
                  provider_impl_,
                  token));
@@ skipping 57 matching lines @@
 
 void ProfileSyncAuthProvider::InvalidateAccessToken(const std::string& token) {
   DCHECK(CalledOnValidThread());
   token_service_->InvalidateToken(account_id_, oauth2_scope_, token);
 }
 
 scoped_ptr<syncer::SyncAuthProvider>
 ProfileSyncAuthProvider::CreateProviderForSyncThread() {
   DCHECK(CalledOnValidThread());
   scoped_ptr<syncer::SyncAuthProvider> auth_provider(new SyncThreadProxy(
-      weak_factory_.GetWeakPtr(), base::MessageLoopProxy::current()));
+      weak_factory_.GetWeakPtr(), base::ThreadTaskRunnerHandle::Get()));
   return auth_provider.Pass();
 }