Clean up a few unused globals.

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 67 matching lines @@
 
 // Core Foundation uses a double second count since 2001-01-01 00:00:00 UTC.
 // The UNIX epoch is 1970-01-01 00:00:00 UTC.
 // Windows uses a Gregorian epoch of 1601.  We need to match this internally
 // so that our time representations match across all platforms.  See bug 14734.
 //   irb(main):010:0> Time.at(0).getutc()
 //   => Thu Jan 01 00:00:00 UTC 1970
 //   irb(main):011:0> Time.at(-11644473600).getutc()
 //   => Mon Jan 01 00:00:00 UTC 1601
 static const int64 kWindowsEpochDeltaSeconds = GG_INT64_C(11644473600);
-static const int64 kWindowsEpochDeltaMilliseconds =
-    kWindowsEpochDeltaSeconds * Time::kMillisecondsPerSecond;
 
 // static
 const int64 Time::kWindowsEpochDeltaMicroseconds =
     kWindowsEpochDeltaSeconds * Time::kMicrosecondsPerSecond;
 
 // Some functions in time.cc use time_t directly, so we provide an offset
 // to convert from time_t (Unix epoch) and internal (Windows epoch).
 // static
 const int64 Time::kTimeTToMicrosecondsOffset = kWindowsEpochDeltaMicroseconds;
 
@@ skipping 96 matching lines @@
   NOTREACHED();
   return TimeTicks();
 }
 
 // static
 TimeTicks TimeTicks::NowFromSystemTraceTime() {
   return HighResNow();
 }
 
 }  // namespace base