Do not start RunLoop of MessagePumpForUI in NestedMessagePumpAndroid

content/public/test/nested_message_pump_android.cc

Index: content/public/test/nested_message_pump_android.cc
diff --git a/content/public/test/nested_message_pump_android.cc b/content/public/test/nested_message_pump_android.cc
index c3adb2cda694f4044e11938bb36dc0e545d2dcd7..5f8ee787857c7324f7bc19d800c58386283562aa 100644
--- a/content/public/test/nested_message_pump_android.cc
+++ b/content/public/test/nested_message_pump_android.cc
@@ -47,7 +47,7 @@ struct NestedMessagePumpAndroid::RunState {
 };
 
 NestedMessagePumpAndroid::NestedMessagePumpAndroid()
-    : state_(NULL) {
+    : state_(NULL), redundant_quit_executed_(false) {
 }
 
 NestedMessagePumpAndroid::~NestedMessagePumpAndroid() {
@@ -123,8 +123,6 @@ void NestedMessagePumpAndroid::Start(
   DCHECK(env);
   g_message_handler_obj.Get().Reset(
       Java_NestedSystemMessageHandler_create(env));
-
-  base::MessagePumpForUI::Start(delegate);
 }
 
 void NestedMessagePumpAndroid::Quit() {
@@ -132,8 +130,14 @@ void NestedMessagePumpAndroid::Quit() {
     state_->should_quit = true;
     state_->waitable_event.Signal();
     return;
+  } else {
+    redundant_quit_executed_ = true;
   }
-  base::MessagePumpForUI::Quit();
+}
+
+bool NestedMessagePumpAndroid::IsRedundantQuitExpected() {
+  // Redundant quit is allowed only once.
+  return !redundant_quit_executed_;
 }
 
 void NestedMessagePumpAndroid::ScheduleWork() {
@@ -141,8 +145,6 @@ void NestedMessagePumpAndroid::ScheduleWork() {
     state_->waitable_event.Signal();
     return;
   }
-
-  base::MessagePumpForUI::ScheduleWork();
 }
 
 void NestedMessagePumpAndroid::ScheduleDelayedWork(
@@ -154,8 +156,6 @@ void NestedMessagePumpAndroid::ScheduleDelayedWork(
     state_->delayed_work_time = delayed_work_time;
     return;
   }
-
-  base::MessagePumpForUI::ScheduleDelayedWork(delayed_work_time);
 }
 
 // static