Show frame rate info for Tab-to-GTS animation

In local builds, show frame rate information after finishing the
Tab-to-GTS animation for easier debugging.

This is behind a flag, "TabToGTSAnimation".

Bug: 964406
Change-Id: I148cc636efd66955b99802a2cf02139d79a8b94b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1628028
Commit-Queue: Wei-Yin Chen (陳威尹) <wychen@chromium.org>
Reviewed-by: Yusuf Ozuysal <yusufo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#663346}
1 file changed