Tighten enforcement of file modes.
Tighten enforcement of file modes.

Bug: 8275867
Change-Id: I4da14f2dd0049aca69636999696c1f3c02b3b792

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