diff --git a/chromium/third_party/webrtc/system_wrappers/interface/clock.h b/chromium/third_party/webrtc/system_wrappers/interface/clock.h
index c03f976d40b341f046b347200854e156df1600ad..c9f8c5051c0a826c583a32ac5191d56ae00c4c2a 100644
--- a/chromium/third_party/webrtc/system_wrappers/interface/clock.h
+++ b/chromium/third_party/webrtc/system_wrappers/interface/clock.h
@@ -12,7 +12,6 @@
 #define WEBRTC_SYSTEM_WRAPPERS_INTERFACE_CLOCK_H_
 
 #include "webrtc/system_wrappers/interface/scoped_ptr.h"
-#include "webrtc/system_wrappers/interface/thread_annotations.h"
 #include "webrtc/typedefs.h"
 
 namespace webrtc {
@@ -78,7 +77,7 @@ class SimulatedClock : public Clock {
   void AdvanceTimeMicroseconds(int64_t microseconds);
 
  private:
-  int64_t time_us_ GUARDED_BY(lock_);
+  int64_t time_us_;
   scoped_ptr<RWLockWrapper> lock_;
 };