deadbeef 7145280954 Unflaking PeerConnectionIntegrationTest.DtmfSenderObserver.
The test attempted to call InsertDtmf before verifying that the DTLS
handshake was complete. Unlike a data channel, the DTMF sender doesn't
do any buffering, so this isn't reliable.

BUG=webrtc:7547
NOTRY=True

Review-Url: https://codereview.webrtc.org/2855573004
Cr-Commit-Position: refs/heads/master@{#18041}
2017-05-08 00:21:01 +00:00
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