Move platform_thread to base/threading and put in the base namespace. I left ...

base/time_win_unittest.cc

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 The Chromium 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 <windows.h>
 #include <mmsystem.h>
 #include <process.h>
 
-#include "base/platform_thread.h"
+#include "base/threading/platform_thread.h"
 #include "base/time.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using base::Time;
 using base::TimeDelta;
 using base::TimeTicks;
 
 namespace {
 
 class MockTimeTicks : public TimeTicks {
@@ skipping 193 matching lines @@
 
   for (int i = 0; i < kIterations; ++i) {
     int64 drift_microseconds = TimeTicks::GetQPCDriftMicroseconds();
 
     // Make sure the drift never exceeds our limit.
     EXPECT_LT(drift_microseconds, 50000);
 
     // Sleep for a few milliseconds (note that it means 1000 microseconds).
     // If we check the drift too frequently, it's going to increase
     // monotonically, making our measurement less realistic.
-    PlatformThread::Sleep((i % 2 == 0) ? 1 : 2);
+    base::PlatformThread::Sleep((i % 2 == 0) ? 1 : 2);
 
     total_drift += drift_microseconds;
   }
 
   // Sanity check. We expect some time drift to occur, especially across
   // the number of iterations we do. However, if the QPC is disabled, this
   // is not measuring anything (drift is zero in that case).
   EXPECT_LT(0, total_drift);
 
   printf("average time drift in microseconds: %lld\n",
          total_drift / kIterations);
 }