Revert "Make GCC happy again." and "Initial switch to Chromium-style CHECK_* and DCHECK_* macros.".

src/base/platform/time.h

 // Copyright 2013 the V8 project 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 V8_BASE_PLATFORM_TIME_H_
 #define V8_BASE_PLATFORM_TIME_H_
 
-#include <ctime>
-#include <iosfwd>
+#include <time.h>
 #include <limits>
 
 #include "src/base/macros.h"
 
 // Forward declarations.
 extern "C" {
 struct _FILETIME;
 struct mach_timespec;
 struct timespec;
 struct timeval;
@@ skipping 254 matching lines @@
     return us_ >= other.us_;
   }
 
  private:
   explicit Time(int64_t us) : us_(us) {}
 
   // Time in microseconds in UTC.
   int64_t us_;
 };
 
-std::ostream& operator<<(std::ostream&, const Time&);
-
 inline Time operator+(const TimeDelta& delta, const Time& time) {
   return time + delta;
 }
 
 
 // -----------------------------------------------------------------------------
 // TimeTicks
 //
 // This class represents an abstract time that is most of the time incrementing
 // for use in measuring time durations. It is internally represented in
@@ skipping 98 matching lines @@
   int64_t ticks_;
 };
 
 inline TimeTicks operator+(const TimeDelta& delta, const TimeTicks& ticks) {
   return ticks + delta;
 }
 
 } }  // namespace v8::base
 
 #endif  // V8_BASE_PLATFORM_TIME_H_