Revert "content: Remove use of MessageLoopProxy and deprecated MessageLoop APIs"

content/browser/media/media_internals_proxy.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 "content/browser/media/media_internals_proxy.h"
 
 #include "base/bind.h"
-#include "base/location.h"
-#include "base/single_thread_task_runner.h"
-#include "base/thread_task_runner_handle.h"
+#include "base/message_loop/message_loop.h"
 #include "content/browser/media/media_internals_handler.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_ui.h"
 
 namespace content {
 
 static const int kMediaInternalsProxyEventDelayMilliseconds = 100;
@@ skipping 130 matching lines @@
     handler_->OnUpdate(update);
 }
 
 void MediaInternalsProxy::AddNetEventOnUIThread(base::Value* entry) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   // Send the updates to the page in kMediaInternalsProxyEventDelayMilliseconds
   // if an update is not already pending.
   if (!pending_net_updates_) {
     pending_net_updates_.reset(new base::ListValue());
-    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+    base::MessageLoop::current()->PostDelayedTask(
         FROM_HERE,
         base::Bind(&MediaInternalsProxy::SendNetEventsOnUIThread, this),
         base::TimeDelta::FromMilliseconds(
             kMediaInternalsProxyEventDelayMilliseconds));
   }
   pending_net_updates_->Append(entry);
 }
 
 void MediaInternalsProxy::SendNetEventsOnUIThread() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   CallJavaScriptFunctionOnUIThread("media.onNetUpdate",
                                    pending_net_updates_.release());
 }
 
 void MediaInternalsProxy::CallJavaScriptFunctionOnUIThread(
     const std::string& function, base::Value* args) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   scoped_ptr<base::Value> args_value(args);
   std::vector<const base::Value*> args_vector;
   args_vector.push_back(args_value.get());
   base::string16 update = WebUI::GetJavascriptCall(function, args_vector);
   UpdateUIOnUIThread(update);
 }
 
 }  // namespace content