base: Add base::TimeTicks::IsHighResNowFastAndReliable

base/time/time_mac.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/time/time.h"
 
 #include <CoreFoundation/CFDate.h>
 #include <CoreFoundation/CFTimeZone.h>
 #include <mach/mach_time.h>
 #include <sys/sysctl.h>
@@ skipping 172 matching lines @@
 TimeTicks TimeTicks::Now() {
   return TimeTicks(ComputeCurrentTicks());
 }
 
 // static
 TimeTicks TimeTicks::HighResNow() {
   return Now();
 }
 
 // static
+bool TimeTicks::IsHighResNowFastAndReliable() {
+  return true;
+}
+
+// static
 TimeTicks TimeTicks::ThreadNow() {
   NOTREACHED();
   return TimeTicks();
 }
 
 // static
 TimeTicks TimeTicks::NowFromSystemTraceTime() {
   return HighResNow();
 }
 
 }  // namespace base