[chrome/browser/extensions] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

chrome/browser/extensions/webstore_install_helper.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 "chrome/browser/extensions/webstore_install_helper.h"
 
 #include <string>
 
 #include "base/bind.h"
+#include "base/thread_task_runner_handle.h"
 #include "base/values.h"
 #include "chrome/browser/bitmap_fetcher/bitmap_fetcher.h"
 #include "chrome/common/chrome_utility_messages.h"
 #include "chrome/common/extensions/chrome_utility_extensions_messages.h"
 #include "chrome/grit/generated_resources.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/utility_process_host.h"
 #include "net/base/load_flags.h"
 #include "net/url_request/url_request.h"
 #include "ui/base/l10n/l10n_util.h"
@@ skipping 45 matching lines @@
 
   BrowserThread::PostTask(
       BrowserThread::IO,
       FROM_HERE,
       base::Bind(&WebstoreInstallHelper::StartWorkOnIOThread, this));
 }
 
 void WebstoreInstallHelper::StartWorkOnIOThread() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   utility_host_ = UtilityProcessHost::Create(
-      this, base::MessageLoopProxy::current().get())->AsWeakPtr();
+      this, base::ThreadTaskRunnerHandle::Get().get())->AsWeakPtr();
   utility_host_->SetName(l10n_util::GetStringUTF16(
       IDS_UTILITY_PROCESS_JSON_PARSER_NAME));
   utility_host_->StartBatchMode();
 
   utility_host_->Send(new ChromeUtilityMsg_ParseJSON(manifest_));
 }
 
 bool WebstoreInstallHelper::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(WebstoreInstallHelper, message)
@@ skipping 72 matching lines @@
 
 void WebstoreInstallHelper::ReportResultFromUIThread() {
   CHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (error_.empty() && parsed_manifest_)
     delegate_->OnWebstoreParseSuccess(id_, icon_, parsed_manifest_.release());
   else
     delegate_->OnWebstoreParseFailure(id_, parse_error_, error_);
 }
 
 }  // namespace extensions