Move files in wtf/ to platform/wtf/ (Part 2).

third_party/WebKit/Source/wtf/CurrentTime.h

-/*
- * Copyright (C) 2006 Apple Computer, Inc.  All rights reserved.
- * Copyright (C) 2008 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
+// Copyright 2017 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.
 
-#ifndef CurrentTime_h
-#define CurrentTime_h
+#include "platform/wtf/CurrentTime.h"
 
-#include "wtf/WTFExport.h"
-
-namespace WTF {
-
-// Returns the current UTC time in seconds, counted from January 1, 1970.
-// Precision varies depending on platform but is usually as good or better
-// than a millisecond.
-WTF_EXPORT double currentTime();
-
-// Same thing, in milliseconds.
-inline double currentTimeMS() {
-  return currentTime() * 1000.0;
-}
-
-// Provides a monotonically increasing time in seconds since an arbitrary point
-// in the past.  On unsupported platforms, this function only guarantees the
-// result will be non-decreasing.
-WTF_EXPORT double monotonicallyIncreasingTime();
-
-// Same thing, in milliseconds.
-inline double monotonicallyIncreasingTimeMS() {
-  return monotonicallyIncreasingTime() * 1000.0;
-}
-
-using TimeFunction = double (*)();
-
-// Make all the time functions (currentTime(), monotonicallyIncreasingTime(),
-// systemTraceTime()) return the result of the supplied function. Returns the
-// pointer to the old time function. For both setting and getting, nullptr
-// means using the default timing function returning the actual time.
-WTF_EXPORT TimeFunction setTimeFunctionsForTesting(TimeFunction);
-
-// Allows wtf/Time.h to use the same mock time function
-WTF_EXPORT TimeFunction getTimeFunctionForTesting();
-
-}  // namespace WTF
-
-using WTF::currentTime;
-using WTF::currentTimeMS;
-using WTF::monotonicallyIncreasingTime;
-using WTF::monotonicallyIncreasingTimeMS;
-using WTF::TimeFunction;
-using WTF::setTimeFunctionsForTesting;
-
-#endif  // CurrentTime_h
+// The contents of this header was moved to platform/wtf as part of
+// WTF migration project. See the following post for details:
+// https://groups.google.com/a/chromium.org/d/msg/blink-dev/tLdAZCTlcAA/bYXVT8gYCAAJ