Fixes for re-enabling more MSVC level 4 warnings: media/ edition

media/base/audio_hash.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 MEDIA_BASE_AUDIO_HASH_H_
 #define MEDIA_BASE_AUDIO_HASH_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 26 matching lines @@
   // Update current hash with the contents of the provided AudioBus.
   void Update(const AudioBus* audio_bus, int frames);
 
   // Return a string representation of the current hash.
   std::string ToString() const;
 
  private:
   // Storage for the audio hash.  The number of buckets controls the importance
   // of position in the hash.  A higher number reduces the chance of false
   // positives related to incorrect sample position.  Value chosen by dice roll.
-  enum { kHashBuckets = 6 };
-  float audio_hash_[kHashBuckets];
+  float audio_hash_[6];
 
   // The total number of samples processed per channel.  Uses a uint32 instead
   // of size_t so overflows on 64-bit and 32-bit machines are equivalent.
   uint32 sample_count_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioHash);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_AUDIO_HASH_H_