base

Synchronize critical sections in NonClientDecorView.ResizeFrameThread

Prevents multiple-threads from accessing/changing member variables at
the same time that can lead to the app crashing.

Also, setName on ResizeFrameThread so we can easily find it in systrace.

Bug: 24745288
Change-Id: Ic2fc7d661db5360c13314197c40e8b2315d2b7e5