Final text for Chrome Frame turndown prompt.

BUG=329993, 329696
R=erikwright@chromium.org
NOTRY=true

Review URL: https://codereview.chromium.org/108233008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242891 0039d316-1c4b-4281-b951-d872f2087c98
Fixing WebRTC tests on Android.

It seems DTMF doesn't work if iSAC is the default codec: we get a
"Uncaught NotSupportedError: The implementation did not support the
requested type of object or operation.",
source: http://127.0.0.1:45188/media/peerconnection-call.html (252)

Will file a separate bug for that. For now, we won't force iSAC on
Android for this particular test.

Also fixed a bug where the video codec scrambling test fooled the
regex that forces iSAC.

BUG=331507
TBR=joi@chromium.org
NOTRY=True

Review URL: https://codereview.chromium.org/123873002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@242892 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 242892