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

base/message_loop/message_pump_android.cc

Index: base/message_loop/message_pump_android.cc
diff --git a/base/message_loop/message_pump_android.cc b/base/message_loop/message_pump_android.cc
index d7bf9a9937cff4020438ec29bd8f9ad585ce8c79..9432c73b60f483035dbac3db246a9cd7291c9960 100644
--- a/base/message_loop/message_pump_android.cc
+++ b/base/message_loop/message_pump_android.cc
@@ -131,6 +131,9 @@ void MessagePumpForUI::ScheduleDelayedWork(const TimeTicks& delayed_work_time) {
       g_system_message_handler_obj.Get().obj(), millis);
 }
 
+void MessagePumpForUI::Shutdown() {
+}
+
 // static
 bool MessagePumpForUI::RegisterBindings(JNIEnv* env) {
   return RegisterNativesImpl(env);