kwiberg 2bbff996a6 Helpers in peer connection unit tests: Use scoped_ptr instead of raw pointers
A handful of helpers were using SessionDescriptionInterface** output
arguments to return ownership. Chenge them to either use a
rtc::scoped_ptr<SessionDescriptionInterface>* output parameter, or to
simply return a rtc::scoped_ptr<SessionDescriptionInterface>. Not
using raw pointers for things you own is good in general; it will also
be very convenient when scoped_ptr is gone, since unique_ptr doesn't
have .accept() or .use() methods.

BUG=webrtc:5520

Review URL: https://codereview.webrtc.org/1798173002

Cr-Commit-Position: refs/heads/master@{#12021}
2016-03-16 18:03:08 +00:00
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