EDK: Make ConnectionManagerTest not use base::MessageLoop/RunLoop.

mojo/edk/base_edk/platform_message_loop_impl.cc

 // Copyright 2015 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 "mojo/edk/base_edk/platform_message_loop_impl.h"
 
 #include <utility>
 
 #include "mojo/edk/base_edk/platform_task_runner_impl.h"
 
@@ skipping 21 matching lines @@
 }
 
 void PlatformMessageLoopImpl::RunUntilIdle() {
   base_message_loop_.RunUntilIdle();
 }
 
 void PlatformMessageLoopImpl::QuitWhenIdle() {
   base_message_loop_.QuitWhenIdle();
 }
 
+void PlatformMessageLoopImpl::QuitNow() {
+  base_message_loop_.QuitNow();
+}
+
 const RefPtr<TaskRunner>& PlatformMessageLoopImpl::GetTaskRunner() const {
   return task_runner_;
 }
 
 bool PlatformMessageLoopImpl::IsRunningOnCurrentThread() const {
   return base::MessageLoop::current() == &base_message_loop_ &&
          base_message_loop_.is_running();
 }
 
 }  // namespace base_edk