Merge base unit tests into src to be in line with Chrome.

src/base/platform/time-unittest.cc

 // Copyright 2014 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.
 
 #include "src/base/platform/time.h"
 
 #if V8_OS_MACOSX
 #include <mach/mach_time.h>
 #endif
 #if V8_OS_POSIX
@@ skipping 121 matching lines @@
     // change, we detect the minimum time between measurements.
     do {
       now = Now();
       delta = now - start;
     } while (now <= start);
     EXPECT_NE(static_cast<int64_t>(0), delta.InMicroseconds());
   } while (delta > target_granularity && !timer.HasExpired(kExpirationTimeout));
   EXPECT_LE(delta, target_granularity);
 }
 
-}
+}  // namespace
 
 
 TEST(Time, NowResolution) {
   // We assume that Time::Now() has at least 16ms resolution.
   static const TimeDelta kTargetGranularity = TimeDelta::FromMilliseconds(16);
   ResolutionTest<Time>(&Time::Now, kTargetGranularity);
 }
 
 
 TEST(TimeTicks, NowResolution) {
@@ skipping 24 matching lines @@
     EXPECT_GE((normal_ticks - previous_normal_ticks).InMicroseconds(), 0);
     EXPECT_GE(highres_ticks, previous_highres_ticks);
     EXPECT_GE((highres_ticks - previous_highres_ticks).InMicroseconds(), 0);
     previous_normal_ticks = normal_ticks;
     previous_highres_ticks = highres_ticks;
   }
 }
 
 }  // namespace base
 }  // namespace v8