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It seems that right now we are granting it to child policy process even if the permission was not granted.
Rename the success parameter to is_allowed. To match what the renderer expects.

TBR=tsepez,dalecurtis
BUG=

Review URL: https://codereview.chromium.org/329993002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276720 0039d316-1c4b-4281-b951-d872f2087c98