Make sure that the UI window created by base::MessagePumpForUI is destoyed on the same thread (Wind…

base/message_loop/message_pump_android.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 "base/message_loop/message_pump_android.h"
 
 #include <jni.h>
 
 #include "base/android/jni_android.h"
 #include "base/android/scoped_java_ref.h"
@@ skipping 113 matching lines @@
   DCHECK(env);
 
   jlong millis =
       (delayed_work_time - TimeTicks::Now()).InMillisecondsRoundedUp();
   // Note that we're truncating to milliseconds as required by the java side,
   // even though delayed_work_time is microseconds resolution.
   Java_SystemMessageHandler_setDelayedTimer(env,
       g_system_message_handler_obj.Get().obj(), millis);
 }
 
+void MessagePumpForUI::Shutdown() {
+}
+
 // static
 bool MessagePumpForUI::RegisterBindings(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace base