Revert 132290 - Remove a dcheck I just added since I apparently don't understand the various circumstances that result in this function being called.
Revert 132290 - Remove a dcheck I just added since I apparently don't understand the various circumstances that result in this function being called.

BUG=none
TEST=none
Review URL: https://chromiumcodereview.appspot.com/10084027

TBR=ben@chromium.org
Review URL: https://chromiumcodereview.appspot.com/10080019

git-svn-id: de016e52bd170d2d4f2344f9bf92d50478b649e0@132304 0039d316-1c4b-4281-b951-d872f2087c98

ropik/chromium,ropik/chromium,ropik/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,yitian134/chromium,yitian134/chromium,yitian134/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,adobe/chromium,yitian134/chromium,adobe/chromium,ropik/chromium,yitian134/chromium,adobe/chromium,ropik/chromium,ropik/chromium,ropik/chromium,ropik/chromium,ropik/chromium,yitian134/chromium