GitLab

The adb_profile_chrome tool has grown quite a bit since its inception,
so now seems to be a good time to split it into smaller modules and add
some rudimentary tests.

BUG=375754
TEST=build/android/chrome_profiler/run_tests
NOTRY=true

Review URL: https://codereview.chromium.org/290013006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272946 0039d316-1c4b-4281-b951-d872f2087c98