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

content/browser/frame_host/render_frame_host_manager_browsertest.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 <set>
 
 #include "base/command_line.h"
 #include "base/json/json_reader.h"
-#include "base/location.h"
 #include "base/memory/ref_counted.h"
 #include "base/path_service.h"
-#include "base/single_thread_task_runner.h"
 #include "base/strings/utf_string_conversions.h"
-#include "base/thread_task_runner_handle.h"
 #include "base/values.h"
 #include "content/browser/child_process_security_policy_impl.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/site_instance_impl.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/browser/webui/web_ui_impl.h"
 #include "content/common/content_constants_internal.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_process_host.h"
@@ skipping 1731 matching lines @@
   }
 
   // WebContentsObserver implementation:
   void RenderFrameDeleted(RenderFrameHost* rfh) override {
     if (rfh == render_frame_host_) {
       CHECK(!deleted_);
       deleted_ = true;
     }
 
     if (deleted_ && message_loop_runner_->loop_running()) {
-      base::ThreadTaskRunnerHandle::Get()->PostTask(
+      base::MessageLoop::current()->PostTask(
           FROM_HERE, message_loop_runner_->QuitClosure());
     }
   }
 
  private:
   scoped_refptr<MessageLoopRunner> message_loop_runner_;
   bool deleted_;
   RenderFrameHost* render_frame_host_;
 };
 
@@ skipping 26 matching lines @@
   NavigateToURL(shell(), cross_site_url);
   rfh_observer.Wait();
 
   EXPECT_NE(orig_site_instance_id,
             root->current_frame_host()->GetSiteInstance()->GetId());
   EXPECT_FALSE(RenderFrameHost::FromID(initial_process_id, initial_rfh_id));
   EXPECT_FALSE(RenderViewHost::FromID(initial_process_id, initial_rvh_id));
 }
 
 }  // namespace content