Move base to DEPS

base/timer/elapsed_timer.h

-// Copyright 2013 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 BASE_TIMER_ELAPSED_TIMER_H_
-#define BASE_TIMER_ELAPSED_TIMER_H_
-
-#include "base/base_export.h"
-#include "base/macros.h"
-#include "base/time/time.h"
-
-namespace base {
-
-// A simple wrapper around TimeTicks::Now().
-class BASE_EXPORT ElapsedTimer {
- public:
-  ElapsedTimer();
-
-  // Returns the time elapsed since object construction.
-  TimeDelta Elapsed() const;
-
- private:
-  TimeTicks begin_;
-
-  DISALLOW_COPY_AND_ASSIGN(ElapsedTimer);
-};
-
-}  // namespace base
-
-#endif  // BASE_TIMER_ELAPSED_TIMER_H_