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diff --git a/chromium/third_party/webrtc/modules/audio_coding/neteq4/accelerate.h b/chromium/third_party/webrtc/modules/audio_coding/neteq4/accelerate.h
deleted file mode 100644
index 83e3e384543..00000000000
--- a/chromium/third_party/webrtc/modules/audio_coding/neteq4/accelerate.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- *  Copyright (c) 2012 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_MODULES_AUDIO_CODING_NETEQ4_ACCELERATE_H_
-#define WEBRTC_MODULES_AUDIO_CODING_NETEQ4_ACCELERATE_H_
-
-#include <assert.h>
-
-#include "webrtc/modules/audio_coding/neteq4/audio_multi_vector.h"
-#include "webrtc/modules/audio_coding/neteq4/time_stretch.h"
-#include "webrtc/system_wrappers/interface/constructor_magic.h"
-#include "webrtc/typedefs.h"
-
-namespace webrtc {
-
-// Forward declarations.
-class BackgroundNoise;
-
-// This class implements the Accelerate operation. Most of the work is done
-// in the base class TimeStretch, which is shared with the PreemptiveExpand
-// operation. In the Accelerate class, the operations that are specific to
-// Accelerate are implemented.
-class Accelerate : public TimeStretch {
- public:
-  Accelerate(int sample_rate_hz, size_t num_channels,
-             const BackgroundNoise& background_noise)
-      : TimeStretch(sample_rate_hz, num_channels, background_noise) {
-  }
-
-  virtual ~Accelerate() {}
-
-  // This method performs the actual Accelerate operation. The samples are
-  // read from |input|, of length |input_length| elements, and are written to
-  // |output|. The number of samples removed through time-stretching is
-  // is provided in the output |length_change_samples|. The method returns
-  // the outcome of the operation as an enumerator value.
-  ReturnCodes Process(const int16_t* input,
-                      size_t input_length,
-                      AudioMultiVector* output,
-                      int16_t* length_change_samples);
-
- protected:
-  // Sets the parameters |best_correlation| and |peak_index| to suitable
-  // values when the signal contains no active speech.
-  virtual void SetParametersForPassiveSpeech(size_t len,
-                                             int16_t* best_correlation,
-                                             int* peak_index) const OVERRIDE;
-
-  // Checks the criteria for performing the time-stretching operation and,
-  // if possible, performs the time-stretching.
-  virtual ReturnCodes CheckCriteriaAndStretch(
-      const int16_t* input, size_t input_length, size_t peak_index,
-      int16_t best_correlation, bool active_speech,
-      AudioMultiVector* output) const OVERRIDE;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(Accelerate);
-};
-
-}  // namespace webrtc
-#endif  // WEBRTC_MODULES_AUDIO_CODING_NETEQ4_ACCELERATE_H_