Move CancellationFlag and WaitableEvent to the synchronization subdirectory.

TEST=it compiles
BUG=none
Review URL: http://codereview.chromium.org/5977010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@70369 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 44f9c950c66c18b205f1dd56a793693899b5057a
24 files changed
tree: db80d283c40a5c6c65e4412cddfa6a175d824172
  1. base/
  2. build/
  3. ipc/
  4. testing/