tree f03b6e7583e29b7bca24091be5a10f1a4faf24d8
parent f89382760380cc3a2dd5d56366344eed2c00e561
author Matthew Xie <mattx@google.com> 1414519526 -0700
committer Andre Eisenbach <eisenbach@google.com> 1414527289 +0000

Make sure now_us returns a value bigger than the previous one

On some platforms clock_gettime may sometimes return a current
time that is earlier than a previous time. While it rarely
happens, we need cover the case anyway.

Bug: 18154020
Change-Id: I3846487aa45d0b11aeb63fa68af8826b864248fa