Add "isolate" for content_unittests.

BUG=

Review URL: https://codereview.chromium.org/27714002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@230187 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed