Don't use base::MessageLoop::{Quit,QuitClosure} in extensions/, ipc/

extensions/shell/browser/shell_desktop_controller_aura.cc

 // Copyright 2014 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 "extensions/shell/browser/shell_desktop_controller_aura.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 228 matching lines @@
   gfx::Size size = GetPrimaryDisplaySize();
   if (!size.IsEmpty())
     host_->UpdateRootWindowSize(size);
 }
 #endif
 
 void ShellDesktopControllerAura::OnHostCloseRequested(
     const aura::WindowTreeHost* host) {
   DCHECK_EQ(host_.get(), host);
   CloseAppWindows();
-  base::MessageLoop::current()->PostTask(FROM_HERE,
-                                         base::MessageLoop::QuitClosure());
+  base::MessageLoop::current()->PostTask(
+      FROM_HERE, base::MessageLoop::QuitWhenIdleClosure());
 }
 
 void ShellDesktopControllerAura::InitWindowManager() {
   wm::FocusController* focus_controller =
       new wm::FocusController(new AppsFocusRules());
   aura::client::SetFocusClient(host_->window(), focus_controller);
   host_->window()->AddPreTargetHandler(focus_controller);
   aura::client::SetActivationClient(host_->window(), focus_controller);
   focus_client_.reset(focus_controller);
 
@@ skipping 77 matching lines @@
   if (displays.empty())
     return gfx::Size();
   const ui::DisplayMode* mode = displays[0]->current_mode();
   return mode ? mode->size() : gfx::Size();
 #else
   return gfx::Size();
 #endif
 }
 
 }  // namespace extensions