Split BrowserTest.CommandCreateAppShortcut so that it does not flakily times out.
Split BrowserTest.CommandCreateAppShortcut so that it does not flakily times out.

BUG=43434
TEST=Verify the splitted tests no longer flakily times out on try bots and build bots.

Review URL: http://codereview.chromium.org/2040003

git-svn-id: http://src.chromium.org/svn/trunk/src@46705 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 846150a607d8aecb4ee7093cea41f3ee51c44efa
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