Update to new engine API (flutter#292)

Author: mravn-google

packages/android_alarm_manager/android/src/main/java/io/flutter/androidalarmmanager/AlarmService.java

@@ -88,7 +88,7 @@ private void ensureFlutterView() {
     // mFlutterView and sSharedFlutterView are both null. That likely means that
     // no FlutterView has ever been created in this process before. So, we'll
     // make one, and assign it to both mFlutterView and sSharedFlutterView.
-    mFlutterView = new FlutterNativeView();
+    mFlutterView = new FlutterNativeView(this);
     sSharedFlutterView = mFlutterView;
     return;
   }