Add a missing "import glob".

Reported in "[chromium-dev] the problem i met when buliding chromium on the windows 7 without cygwin"

R=scottmg@chromium.org

Review URL: https://codereview.chromium.org/134763002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244232 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244232
Add support for using expressions as enum values.

BUG=320090
R=darin@chromium.org

Review URL: https://codereview.chromium.org/130443003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244233 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244233