chrome://profiler infrastructure uses base time types.
Previously, chrome://profiler avoided base::TimeTicks and
base::TimeDelta because they're 64 bits.
At this point, that appears to be premature optimization. Switch to
using the base time types.
This is required for using chrome://profiler's infrastructure for
building thread time UMA metrics.
BUG=736449
Review-Url: https://codereview.chromium.org/2956683002
Cr-Commit-Position: refs/heads/master@{#483054}
CrOS-Libchrome-Original-Commit: 6f2691cc7756d599ce5622cb7c9fc854afcf3c57
10 files changed