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

cc/base/time_util.h

Index: cc/base/time_util.h
diff --git a/cc/base/time_util.h b/cc/base/time_util.h
index d124f94d90d4faa2e143eaa37364f906265794ba..4f2888749e76848a08581912718b84f89388225a 100644
--- a/cc/base/time_util.h
+++ b/cc/base/time_util.h
@@ -5,13 +5,11 @@
 #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>(