[Coverage] Create code coverage script.

This CL adds the first version of the code coverage script, which is
able to generate line by line code coverage report in html for files
involved when running test targets.

Bug: 784464
Change-Id: I0b8f894ca424e02c3e8a3176d2988df0a2e9d239
Reviewed-on: https://chromium-review.googlesource.com/764949
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Max Moroz <mmoroz@chromium.org>
Commit-Queue: Yuke Liao <liaoyuke@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#521367}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 506e8823c824de70a3315fade97e1b8ea2b733b5
11 files changed
tree: dda8bf95a7b13bb764b50795b8cc08ef01caeaae
  1. coverage.py
  2. OWNERS