GitLab

Test Runner changes to allow integration tests as well as the ability
to point the device's google_base_url (or any android shell flag) to
a specified value in stored in a .flags file.

BUG=None

Review URL: https://codereview.chromium.org/444243002

Cr-Commit-Position: refs/heads/master@{#288202}
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@288202 0039d316-1c4b-4281-b951-d872f2087c98