Refactor DisplayEventReceiver read loop.
Refactor DisplayEventReceiver read loop.

Change-Id: I98ef802ec0ca48f768e3b0920e1b4b4f7f141050

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base