Hack clock_unittest fix for parallel execution.
Hack clock_unittest fix for parallel execution.

It's a bad idea to depend on timing constraints in unit tests, but
moving this from 5 -> 100 ms should allow it to fail only very rarely.

TBR=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/35659004

git-svn-id: 03ae4fbe531b1eefc9d815f31e49022782c42458@7999 4adac7df-926f-26a2-2b94-8c16560cd09d

svn2github/webrtc-Revision-8758,svn2github/webrtc-Revision-8758,svn2github/webrtc-Revision-8758,svn2github/webrtc-Revision-8758,svn2github/webrtc-Revision-8758,svn2github/webrtc-Revision-8758