tommi 63cb434691 Switch use of CriticalSectionWrapper -> rtc::CriticalSection in call/
This is a first cl of removing use of CriticalSectionWrapper after a series of cleanup CLs that have been landing recently (and still are landing).

BUG=

Review URL: https://codereview.webrtc.org/1610553002

Cr-Commit-Position: refs/heads/master@{#11316}
2016-01-20 10:32:58 +00:00
..
2016-01-19 15:26:24 +00:00