Tweaks to OptionUI tests to reduce flaky behavior.  These changes are in-line w/ BookmarksUI tests that seem to behave better. Will re-evaluate later to determine if we can safely remove the flaky tag.
Tweaks to OptionUI tests to reduce flaky behavior.  These changes are in-line w/ BookmarksUI tests that seem to behave better. Will re-evaluate later to determine if we can safely remove the flaky tag.

BUG=48521
TEST=Review behavior on flakiness dashboard after some time.
Review URL: http://codereview.chromium.org/3429019

git-svn-id: http://src.chromium.org/svn/trunk/src@60301 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 0c0d22f7bc9b40cc0b5825ed86e47fb431719f64
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser