Fixed memory leak in test shell tests
Fixed memory leak in test shell tests

Added call to cleanup code in AllowDefer tests so that the resource
is properly released.

BUG=none
TEST=test_shell_tests

Review URL: http://codereview.chromium.org/2825042

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@51789 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