Do not start RunLoop of MessagePumpForUI in NestedMessagePumpAndroid

base/message_loop/message_loop.cc

 // Copyright 2013 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_loop.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
@@ skipping 310 matching lines @@
     run_loop_->quit_when_idle_received_ = true;
   } else {
     NOTREACHED() << "Must be inside Run to call Quit";
   }
 }
 
 void MessageLoop::QuitNow() {
   DCHECK_EQ(this, current());
   if (run_loop_) {
     pump_->Quit();
+#if defined(OS_ANDROID)
+  } else if (type_ == TYPE_UI &&
+             static_cast<MessagePumpForUI*>(pump_.get())
+                 ->IsRedundantQuitExpected()) {
+    pump_->Quit();
+#endif
   } else {
     NOTREACHED() << "Must be inside Run to call Quit";
   }
 }
 
 bool MessageLoop::IsType(Type type) const {
   return type_ == type;
 }
 
 static void QuitCurrentWhenIdle() {
@@ skipping 371 matching lines @@
       persistent,
       mode,
       controller,
       delegate);
 }
 #endif
 
 #endif  // !defined(OS_NACL_SFI)
 
 }  // namespace base