ui/aura: Aura does not require any ResourceBundle initialization.

It is not necessary to initialize ResourceBundle in aura, because it
isn't using any resources or strings, so it should not be necessary to
carry the dependency on ui_resources, packed_resources and ui_test_pak.

BUG=144345
TEST=run aura_bench, aura_demo and aura_unittests
R=tony@chromium.org,sadrul@chromium.org

Review URL: https://codereview.chromium.org/114763004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242966 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242966