Delete all use of tick_util.h.

webrtc/modules/desktop_capture/mac/full_screen_chrome_window_detector.h

Index: webrtc/modules/desktop_capture/mac/full_screen_chrome_window_detector.h
diff --git a/webrtc/modules/desktop_capture/mac/full_screen_chrome_window_detector.h b/webrtc/modules/desktop_capture/mac/full_screen_chrome_window_detector.h
index 4e6008966e6379ab06881426b2864fbd0151449a..a75e563e92327e5b74724f470eb94b8cc9f7e487 100644
--- a/webrtc/modules/desktop_capture/mac/full_screen_chrome_window_detector.h
+++ b/webrtc/modules/desktop_capture/mac/full_screen_chrome_window_detector.h
@@ -15,7 +15,6 @@
 
 #include "webrtc/modules/desktop_capture/window_capturer.h"
 #include "webrtc/system_wrappers/include/atomic32.h"
-#include "webrtc/system_wrappers/include/tick_util.h"
 
 namespace webrtc {
 
@@ -59,7 +58,7 @@ class FullScreenChromeWindowDetector {
   // full-screen window exists in the list) if Capture() is called too soon.
   WindowCapturer::WindowList current_window_list_;
   WindowCapturer::WindowList previous_window_list_;
-  TickTime last_udpate_time_;
+  int64_t last_update_time_;

[stefan-webrtc, 2016/04/19 09:19:12]

It'd be nice to add a unit to this member.

[nisse-webrtc, 2016/04/19 12:19:25]

On a closer look, this member is unused. No explicit initialization (a bug in
the cl, the TickTime class had a default initializer), never assigned, and used
only to compute a most likely bogus interval for a warning message.

I'm deleting it instead.

 
   RTC_DISALLOW_COPY_AND_ASSIGN(FullScreenChromeWindowDetector);
 };