Tommi 897e136762 Add missing #include + dependency to weak_ptr_unittest.
I ran into this while looking at the rtc::Event class.

TBR=mbonadei@webrtc.org

Bug: webrtc:8596
Change-Id: Iee00b15381548b69f6cb9485788c787bde23494a
Reviewed-on: https://webrtc-review.googlesource.com/28280
Reviewed-by: Tommi <tommi@webrtc.org>
Commit-Queue: Tommi <tommi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20981}
2017-12-01 18:28:37 +00:00
..
2017-11-25 19:03:41 +00:00
2017-11-27 13:56:22 +00:00