Motown: Fix unique_ptrs to arrays so deallocation is done properly

services/media/audio/platform/generic/standard_output_base.h

 // Copyright 2015 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 SERVICES_MEDIA_AUDIO_PLATFORM_GENERIC_STANDARD_OUTPUT_BASE_H_
 #define SERVICES_MEDIA_AUDIO_PLATFORM_GENERIC_STANDARD_OUTPUT_BASE_H_
 
 #include "base/callback.h"
 #include "mojo/services/media/common/cpp/linear_transform.h"
 #include "mojo/services/media/common/cpp/local_time.h"
@@ skipping 97 matching lines @@
   // TODO(johngro): Right now, the cannonical intermediate format is signed 32
   // bit ints.  As time goes on, we may need to reconsider this.  This will
   // become more important when...
   //
   // 1) We support 24 bit audio.  Right now, with a 16 bit max, we can
   //    accumulate for up to a maximum of 2^16-1 tracks without needing to do
   //    anything special about about clipping.  With 24 bit audio, this number
   //    will drop to only 255 simultanious tracks.  It is unclear if this is a
   //    reasonable system-wide limitation or not.
   // 2) We support floating point audio.
-  std::unique_ptr<int32_t> mix_buf_;
+  std::unique_ptr<int32_t[]> mix_buf_;
   uint32_t mix_buf_frames_ = 0;
 
   // State used by the mix task.
   TrackSetupTask setup_mix_;
   TrackProcessTask process_mix_;
   MixJob cur_mix_job_;
 
   // State used by the trim task.
   TrackSetupTask setup_trim_;
   TrackProcessTask process_trim_;
   int64_t trim_threshold_;
 };
 
 }  // namespace audio
 }  // namespace media
 }  // namespace mojo
 
 #endif  // SERVICES_MEDIA_AUDIO_PLATFORM_GENERIC_STANDARD_OUTPUT_BASE_H_