[Mac] stop the output that is slowing down all the tests that seem to walk this code path.
[Mac] stop the output that is slowing down all the tests that seem to walk this code path.

BUG=44401,44900
TEST=see bugs
Review URL: http://codereview.chromium.org/2167001

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@48036 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