base

Merge change 5091 into donut

* changes:
  * new screen resolution support impl.   * use full window for activities, and shift & clip the content   * refactored the compatibility code, and introdcued Translator class to handle cooridnate translations.   * removed a workaround to handle an activity with configChagne=rotation in old implementation.   * I'll fix background issue on rotation in next CL.