Run the MessageLoop longer in order to clear out extra DeleteSoon()s.

chrome/browser/extensions/test_extension_environment.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 "chrome/browser/extensions/test_extension_environment.h"
 
 #include "base/command_line.h"
 #include "base/json/json_writer.h"
 #include "base/run_loop.h"
 #include "base/values.h"
@@ skipping 20 matching lines @@
       extension_service_(NULL) {
   file_thread_.Start();
   file_blocking_thread_.Start();
   io_thread_.StartIOThread();
 }
 
 TestExtensionEnvironment::~TestExtensionEnvironment() {
   profile_.reset();
   // Delete the profile, and then cycle the message loop to clear
   // out delayed deletions.
-  base::RunLoop run_loop;
-  loop_.PostTask(FROM_HERE, run_loop.QuitClosure());
-  run_loop.Run();
+  base::RunLoop().RunUntilIdle();
 }
 
 TestingProfile* TestExtensionEnvironment::profile() const {
   return profile_.get();
 }
 
 ExtensionService* TestExtensionEnvironment::GetExtensionService() {
   if (extension_service_ == NULL) {
     TestExtensionSystem* extension_system =
         static_cast<TestExtensionSystem*>(ExtensionSystem::Get(profile()));
@@ skipping 27 matching lines @@
 
 scoped_ptr<content::WebContents> TestExtensionEnvironment::MakeTab() const {
   scoped_ptr<content::WebContents> contents(
       content::WebContentsTester::CreateTestWebContents(profile(), NULL));
   // Create a tab id.
   SessionTabHelper::CreateForWebContents(contents.get());
   return contents.Pass();
 }
 
 }  // namespace extensions