Makes ScreenCapturerMac exclude the window specified in DesktopCapturer::SetExcludedWindow.
No behavior change for now since Chromium has not been updated to call SetExcludedWindow.

BUG=2789
R=sergeyu@chromium.org

Review URL: https://webrtc-codereview.appspot.com/10299004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5792 4adac7df-926f-26a2-2b94-8c16560cd09d
4 files changed