Remove obsolete atomic debugging checks.

media/base/sinc_resampler.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.
 
 #ifndef MEDIA_BASE_SINC_RESAMPLER_H_
 #define MEDIA_BASE_SINC_RESAMPLER_H_
 
-#include "base/atomic_ref_count.h"
 #include "base/callback.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/aligned_memory.h"
 #include "base/memory/scoped_ptr.h"
 #include "build/build_config.h"
 #include "media/base/media_export.h"
 
 namespace media {
 
 // SincResampler is a high-quality single-channel sample-rate converter.
@@ skipping 110 matching lines @@
   scoped_ptr<float[], base::AlignedFreeDeleter> input_buffer_;
 
   // Pointers to the various regions inside |input_buffer_|.  See the diagram at
   // the top of the .cc file for more information.
   float* r0_;
   float* const r1_;
   float* const r2_;
   float* r3_;
   float* r4_;
 
-  // Atomic ref count indicating when when we're not currently resampling.  Will
-  // be CHECK'd to find crashes...
-  // TODO(dalecurtis): Remove debug helpers for http://crbug.com/295278
-  base::AtomicRefCount not_currently_resampling_;
-
   DISALLOW_COPY_AND_ASSIGN(SincResampler);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_SINC_RESAMPLER_H_