Revert 5516 "Thread annotation of talk_base::CriticalSection."
r5516 failed compilation on builds with enable_webrtc=0.
> Thread annotation of talk_base::CriticalSection.
>
> Also enabling -Wthread-safety in talk/build/common.gypi for clang on
> Linux. Thread annotations are compile-time checks that for instance
> certain locks are held before accessing a value.
>
> BUG=
> TEST=Local GUARDED_BY() annotations.
> R=andresp@webrtc.org, fischman@webrtc.org
>
> Review URL: https://webrtc-codereview.appspot.com/8189004
TBR=pbos@webrtc.org
Review URL: https://webrtc-codereview.appspot.com/8409004
git-svn-id: http://webrtc.googlecode.com/svn/trunk/talk@5523 4adac7df-926f-26a2-2b94-8c16560cd09d
5 files changed