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

media/base/audio_hash.h

Index: media/base/audio_hash.h
diff --git a/media/base/audio_hash.h b/media/base/audio_hash.h
index 91d6edf90433c7388da0d032fb6fcd651f8f8f84..ec733832f7817d001a7caf60f310af975ccb4145 100644
--- a/media/base/audio_hash.h
+++ b/media/base/audio_hash.h
@@ -44,8 +44,7 @@ class MEDIA_EXPORT AudioHash {
   // 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.