Android improvements:

runtime/embedders/openglui/android/eventloop.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef EMBEDDERS_OPENGLUI_ANDROID_EVENTLOOP_H_
 #define EMBEDDERS_OPENGLUI_ANDROID_EVENTLOOP_H_
 
 #include <android_native_app_glue.h>
 #include "embedders/openglui/common/events.h"
 #include "embedders/openglui/common/input_handler.h"
 #include "embedders/openglui/common/lifecycle_handler.h"
 
 class EventLoop {
   public:
     explicit EventLoop(android_app* application);
     void Run(LifeCycleHandler* activity_handler,
              InputHandler* input_handler);
 
   protected:
-    void Activate();
-    void Deactivate();
     void ProcessActivityEvent(int32_t command);
     int32_t ProcessInputEvent(AInputEvent* event);
     bool OnTouchEvent(AInputEvent* event);
     bool OnKeyEvent(AInputEvent* event);
 
     static void ActivityCallback(android_app* application, int32_t command);
     static int32_t InputCallback(android_app* application, AInputEvent* event);
 
   private:
-    bool enabled_;
-    bool quit_;
+    bool enabled_, quit_;
+    bool isResumed_, hasSurface_, hasFocus_;
     android_app* application_;
     LifeCycleHandler* lifecycle_handler_;
     InputHandler* input_handler_;
 };
 
 #endif  // EMBEDDERS_OPENGLUI_ANDROID_EVENTLOOP_H_