Renames Workspace*2 -> Workspace*.

BUG=none
TEST=none
R=ben@chromium.org
TBR=ben@chromium.org
Review URL: https://codereview.chromium.org/11293014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@165226 0039d316-1c4b-4281-b951-d872f2087c98
18 files changed