Revert of [Reland] Implement CPU time for OS X and POSIX.

test/unittests/base/platform/time-unittest.cc

Index: test/unittests/base/platform/time-unittest.cc
diff --git a/test/unittests/base/platform/time-unittest.cc b/test/unittests/base/platform/time-unittest.cc
index 784fbf842d92b39df06ed568294c4346e7a4d178..b3bfbab3190506029b0243359520f913121cce59 100644
--- a/test/unittests/base/platform/time-unittest.cc
+++ b/test/unittests/base/platform/time-unittest.cc
@@ -16,7 +16,6 @@
 #endif
 
 #include "src/base/platform/elapsed-timer.h"
-#include "src/base/platform/platform.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace v8 {
@@ -183,32 +182,5 @@
   }
 }
 
-
-// Disable on windows until it is implemented.
-#if V8_OS_ANDROID || V8_OS_WIN
-#define MAYBE_ThreadNow DISABLED_ThreadNow
-#else
-#define MAYBE_ThreadNow ThreadNow
-#endif
-TEST(ThreadTicks, MAYBE_ThreadNow) {
-  if (ThreadTicks::IsSupported()) {
-    TimeTicks begin = TimeTicks::Now();
-    ThreadTicks begin_thread = ThreadTicks::Now();
-    // Make sure that ThreadNow value is non-zero.
-    EXPECT_GT(begin_thread, ThreadTicks());
-    // Sleep for 10 milliseconds to get the thread de-scheduled.
-    OS::Sleep(base::TimeDelta::FromMilliseconds(10));
-    ThreadTicks end_thread = ThreadTicks::Now();
-    TimeTicks end = TimeTicks::Now();
-    TimeDelta delta = end - begin;
-    TimeDelta delta_thread = end_thread - begin_thread;
-    // Make sure that some thread time have elapsed.
-    EXPECT_GT(delta_thread.InMicroseconds(), 0);
-    // But the thread time is at least 9ms less than clock time.
-    TimeDelta difference = delta - delta_thread;
-    EXPECT_GE(difference.InMicroseconds(), 9000);
-  }
-}
-
 }  // namespace base
 }  // namespace v8