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

content/shell/browser/shell.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 "content/shell/browser/shell.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
-#include "base/location.h"
-#include "base/single_thread_task_runner.h"
+#include "base/message_loop/message_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
-#include "base/thread_task_runner_handle.h"
 #include "content/public/browser/devtools_agent_host.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "content/public/common/renderer_preferences.h"
 #include "content/shell/browser/blink_test_controller.h"
 #include "content/shell/browser/layout_test/layout_test_devtools_frontend.h"
 #include "content/shell/browser/layout_test/layout_test_javascript_dialog_manager.h"
@@ skipping 58 matching lines @@
   for (size_t i = 0; i < windows_.size(); ++i) {
     if (windows_[i] == this) {
       windows_.erase(windows_.begin() + i);
       break;
     }
   }
 
   if (windows_.empty() && quit_message_loop_) {
     if (headless_)
       PlatformExit();
-    base::ThreadTaskRunnerHandle::Get()->PostTask(
-        FROM_HERE, base::MessageLoop::QuitClosure());
+    base::MessageLoop::current()->PostTask(FROM_HERE,
+                                           base::MessageLoop::QuitClosure());
   }
 }
 
 Shell* Shell::CreateShell(WebContents* web_contents,
                           const gfx::Size& initial_size) {
   Shell* shell = new Shell(web_contents);
   shell->PlatformCreateWindow(initial_size.width(), initial_size.height());
 
   shell->web_contents_.reset(web_contents);
   web_contents->SetDelegate(shell);
@@ skipping 320 matching lines @@
   devtools_frontend_->Activate();
   devtools_frontend_->Focus();
 }
 
 void Shell::OnDevToolsWebContentsDestroyed() {
   devtools_observer_.reset();
   devtools_frontend_ = NULL;
 }
 
 }  // namespace content