Delete Timing class, timing.h, and update all users.

webrtc/base/timing.h

Index: webrtc/base/timing.h
diff --git a/webrtc/base/timing.h b/webrtc/base/timing.h
deleted file mode 100644
index a73c57d986c02b041e2f2b8413fb45b9461e7425..0000000000000000000000000000000000000000
--- a/webrtc/base/timing.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- *  Copyright 2008 The WebRTC 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 in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_BASE_TIMING_H_
-#define WEBRTC_BASE_TIMING_H_
-
-namespace rtc {
-
-// TODO(deadbeef): Remove this and use ClockInterface instead.
-class Timing {
- public:
-  Timing();
-  virtual ~Timing();
-
-  // WallTimeNow() returns the current wall-clock time in seconds,
-  // within 10 milliseconds resolution.
-  // WallTimeNow is static and does not require a timer_handle_ on Windows.
-  static double WallTimeNow();
-
-  // TimerNow() is like WallTimeNow(), but is monotonically
-  // increasing.  It returns seconds in resolution of 10 microseconds
-  // or better.  Although timer and wall-clock time have the same
-  // timing unit, they do not necessarily correlate because wall-clock
-  // time may be adjusted backwards, hence not monotonic.
-  // Made virtual so we can make a fake one.
-  // TODO(tommi): The only place we use this (virtual) is in
-  // rtpdata_engine_unittest.cc.  See if it doesn't make more sense to change
-  // that contract or test than to modify this generic class.
-  virtual double TimerNow();
-};
-
-}  // namespace rtc
-
-#endif // WEBRTC_BASE_TIMING_H_