Remove #pragma once from content

content/browser/speech/endpointer/energy_endpointer.h

 // Copyright (c) 2012 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.
 
 // The EnergyEndpointer class finds likely speech onset and offset points.
 //
 // The implementation described here is about the simplest possible.
 // It is based on timings of threshold crossings for overall signal
 // RMS. It is suitable for light weight applications.
 //
@@ skipping 18 matching lines @@
 // If used in noisy conditions, the endpointer should be started and run in the
 // EnvironmentEstimation mode, for at least 200ms, before switching to
 // UserInputMode.
 // Audio feedback contamination can appear in the input audio, if not cut
 // out or handled by echo cancellation. Audio feedback can trigger a false
 // accept. The false accepts can be ignored by setting
 // ep_contamination_rejection_period.
 
 #ifndef CONTENT_BROWSER_SPEECH_ENDPOINTER_ENERGY_ENDPOINTER_H_
 #define CONTENT_BROWSER_SPEECH_ENDPOINTER_ENERGY_ENDPOINTER_H_
-#pragma once
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/speech/endpointer/energy_endpointer_params.h"
 #include "content/common/content_export.h"
 
 namespace speech {
 
@@ skipping 97 matching lines @@
   // Time when mode switched from environment estimation to user input. This
   // is used to time forced rejection of audio feedback contamination.
   int64 user_input_start_time_us_;
 
   DISALLOW_COPY_AND_ASSIGN(EnergyEndpointer);
 };
 
 }  // namespace speech
 
 #endif  // CONTENT_BROWSER_SPEECH_ENDPOINTER_ENERGY_ENDPOINTER_H_