Initial switch to Chromium-style CHECK_* and DCHECK_* macros.

src/base/platform/time.h

Index: src/base/platform/time.h
diff --git a/src/base/platform/time.h b/src/base/platform/time.h
index 9dfa47d4e5f34c2516e561f6b5827ec2466a4811..887664e7ba5bd78268438baf6f8adb4da80287cf 100644
--- a/src/base/platform/time.h
+++ b/src/base/platform/time.h
@@ -5,7 +5,8 @@
 #ifndef V8_BASE_PLATFORM_TIME_H_
 #define V8_BASE_PLATFORM_TIME_H_
 
-#include <time.h>
+#include <ctime>
+#include <iosfwd>
 #include <limits>
 
 #include "src/base/macros.h"
@@ -280,6 +281,8 @@ class Time FINAL {
   int64_t us_;
 };
 
+std::ostream& operator<<(std::ostream&, const Time&);
+
 inline Time operator+(const TimeDelta& delta, const Time& time) {
   return time + delta;
 }