CC Animation: Make cc/animation an independent GN component.

cc/base/time_util.h

 // Copyright 2014 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.
 
 #ifndef CC_BASE_TIME_UTIL_H_
 #define CC_BASE_TIME_UTIL_H_
 
-namespace base {
-class TimeDelta;
-}
+#include "base/time/time.h"
 
 namespace cc {
 
-class CC_EXPORT TimeUtil {
+class TimeUtil {
  public:
   static base::TimeDelta Scale(base::TimeDelta time_delta, double value) {
     return base::TimeDelta::FromInternalValue(static_cast<int64_t>(
         static_cast<double>(time_delta.ToInternalValue()) * value));
   }
 
   static double Divide(base::TimeDelta dividend, base::TimeDelta divisor) {
     return static_cast<double>(dividend.ToInternalValue()) /
            static_cast<double>(divisor.ToInternalValue());
   }
 
   static base::TimeDelta Mod(base::TimeDelta dividend,
                              base::TimeDelta divisor) {
     return base::TimeDelta::FromInternalValue(dividend.ToInternalValue() %
                                               divisor.ToInternalValue());
   }
 };
 
 }  // namespace cc
 
 #endif  // CC_BASE_TIME_UTIL_H_