GitLab

dskiba@ wrote some startup scripts to get startup performance metrics via
running chrome locally multiple times and capturing capturing/analyzing trace
events. These work when specific usecases are not implemented as benchmark
stories (eg: WebAPK startup)

Scripts were originally written for personal use so may not be the best quality
but they are useful so should be included in the chromium repo rather than only
on his personal git.

Change-Id: I04e711db61ed26e7f9d531756f6b4699476406d5
Reviewed-on: https://chromium-review.googlesource.com/1168156
Commit-Queue: Mohamed Heikal <mheikal@chromium.org>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584795}