Forcing iSAC on Android without clobbering data codecs.

BUG=181069

Review URL: https://codereview.chromium.org/199053002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@257092 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 257092