Have CommandCloseTabsOpenedBy iterate through the tabs in reverse order to avoid race conditions with tab closing now that it's async.
Have CommandCloseTabsOpenedBy iterate through the tabs in reverse order to avoid race conditions with tab closing now that it's async.

BUG=1303289

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@216 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser