Merge 98889 - Update references to the extension gallery.

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/7778017

TBR=kathyw@chromium.org
Review URL: http://codereview.chromium.org/7809008

git-svn-id: svn://svn.chromium.org/chrome/branches/782/src@98890 0039d316-1c4b-4281-b951-d872f2087c98
12 files changed