Removed CHECK to avoid browser crash for Mac OS X.

Reverts part  of http://src.chromium.org/viewvc/chrome?view=rev&revision=161328.

TBR=dalecurtis
BUG=155608

Review URL: https://codereview.chromium.org/11143011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@161847 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed