Migrate files to embedder.

samples/android_sample/jni/activity_handler.h

Index: samples/android_sample/jni/activity_handler.h
diff --git a/samples/android_sample/jni/activity_handler.h b/samples/android_sample/jni/activity_handler.h
deleted file mode 100644
index 2ecccf83aa1833626de02352402863b562532781..0000000000000000000000000000000000000000
--- a/samples/android_sample/jni/activity_handler.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef ACTIVITY_HANDLER_H
-#define ACTIVITY_HANDLER_H
-
-class ActivityHandler {
-  public:
-    virtual int32_t OnActivate() = 0;
-    virtual void OnDeactivate() = 0;
-    virtual int32_t OnStep() = 0;
-    virtual void OnStart() {}
-    virtual void OnResume() {}
-    virtual void OnPause() {}
-    virtual void OnStop() {}
-    virtual void OnDestroy() {}
-    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 ~ActivityHandler() {}
-};
-
-#endif
-