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

content/browser/site_per_process_browsertest.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/site_per_process_browsertest.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/command_line.h"
-#include "base/location.h"
-#include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
-#include "base/thread_task_runner_handle.h"
 #include "content/browser/frame_host/cross_process_frame_connector.h"
 #include "content/browser/frame_host/frame_tree.h"
 #include "content/browser/frame_host/navigator.h"
 #include "content/browser/frame_host/render_frame_proxy_host.h"
 #include "content/browser/frame_host/render_widget_host_view_child_frame.h"
 #include "content/browser/renderer_host/render_view_host_impl.h"
 #include "content/browser/web_contents/web_contents_impl.h"
 #include "content/common/frame_messages.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_service.h"
@@ skipping 401 matching lines @@
   EXPECT_NE(shell()->web_contents()->GetSiteInstance(),
             child_node->current_frame_host()->GetSiteInstance());
   RenderWidgetHostViewBase* rwhv_base = static_cast<RenderWidgetHostViewBase*>(
       child_node->current_frame_host()->GetRenderWidgetHost()->GetView());
 
   // Wait for OnSwapCompositorFrame message.
   while (rwhv_base->RendererFrameNumber() <= 0) {
     // TODO(lazyboy): Find a better way to avoid sleeping like this. See
     // http://crbug.com/405282 for details.
     base::RunLoop run_loop;
-    base::ThreadTaskRunnerHandle::Get()->PostDelayedTask(
+    base::MessageLoop::current()->PostDelayedTask(
         FROM_HERE, run_loop.QuitClosure(),
         base::TimeDelta::FromMilliseconds(10));
     run_loop.Run();
   }
 }
 
 // Ensure that OOPIFs are deleted after navigating to a new main frame.
 IN_PROC_BROWSER_TEST_F(SitePerProcessBrowserTest, CleanupCrossSiteIframe) {
   GURL main_url(embedded_test_server()->GetURL("/site_per_process_main.html"));
   NavigateToURL(shell(), main_url);
@@ skipping 2083 matching lines @@
       "   |--Site A\n"
       "   +--Site A\n"
       "        |--Site A\n"
       "        +--Site A\n"
       "             +--Site A\n"
       "Where A = http://127.0.0.1/",
       DepictFrameTree(root));
 }
 
 }  // namespace content