Stop building Chrome Frame.

BUG=316496
TBR=thestig@chromium.org

Review URL: https://codereview.chromium.org/105473007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243119 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 243119