[android] Add timeout_retry module to pylib/utils/.

BUG=318387
TEST=None
NOTRY=True

Review URL: https://codereview.chromium.org/60043003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235776 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235776
[rAC, OSX] fix a few small style nits.

BUG=none
TEST=none
R=isherman@chromium.org

Review URL: https://codereview.chromium.org/62873006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@235777 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 235777