Android improvements:

runtime/embedders/openglui/common/lifecycle_handler.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_COMMON_LIFECYCLE_HANDLER_H_
 #define EMBEDDERS_OPENGLUI_COMMON_LIFECYCLE_HANDLER_H_
 
 class LifeCycleHandler {
   public:
-    virtual int32_t OnActivate() = 0;
-    virtual void OnDeactivate() = 0;
+    virtual int32_t OnStart() = 0;
+    virtual int32_t Activate() = 0;
+    virtual void Deactivate() = 0;
     virtual int32_t OnStep() = 0;
-    virtual void OnStart() {}
-    virtual void OnResume() {}
-    virtual void OnPause() {}
-    virtual void OnStop() {}
-    virtual void OnDestroy() {}
+    virtual void Pause() {}
+    virtual int32_t Resume() {
+      return 0;
+    }
+    virtual void FreeAllResources() {}
     virtual void OnSaveState(void** data, size_t* size) {}
     virtual void OnConfigurationChanged() {}
     virtual void OnLowMemory() {}
-    virtual void OnCreateWindow() {}
-    virtual void OnDestroyWindow() {}
-    virtual void OnGainedFocus() {}
-    virtual void OnLostFocus() {}
     virtual ~LifeCycleHandler() {}
 };
 
 #endif  // EMBEDDERS_OPENGLUI_COMMON_LIFECYCLE_HANDLER_H_