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We've seen different failure related to the fact that we use the same flag without providing the same API and functionality.

BUG=
TBR=jamesr

Review URL: https://codereview.chromium.org/212643015

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@259855 0039d316-1c4b-4281-b951-d872f2087c98