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

mojo/android/system/base_run_loop.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/android/system/base_run_loop.h"
 
 #include <jni.h>
 
 #include "base/android/base_jni_registrar.h"
 #include "base/android/jni_android.h"
@@ skipping 21 matching lines @@
 
 static void RunUntilIdle(JNIEnv* env,
                          const JavaParamRef<jobject>& jcaller,
                          jlong runLoopID) {
   reinterpret_cast<base::MessageLoop*>(runLoopID)->RunUntilIdle();
 }
 
 static void Quit(JNIEnv* env,
                  const JavaParamRef<jobject>& jcaller,
                  jlong runLoopID) {
-  reinterpret_cast<base::MessageLoop*>(runLoopID)->Quit();
+  reinterpret_cast<base::MessageLoop*>(runLoopID)->QuitWhenIdle();
 }
 
 static void RunJavaRunnable(
     const base::android::ScopedJavaGlobalRef<jobject>& runnable_ref) {
   Java_BaseRunLoop_runRunnable(base::android::AttachCurrentThread(),
                                runnable_ref.obj());
 }
 
 static void PostDelayedTask(JNIEnv* env,
                             const JavaParamRef<jobject>& jcaller,
@@ skipping 19 matching lines @@
 }
 
 bool RegisterBaseRunLoop(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android
 }  // namespace mojo