Revert of Remove ScopedVector from all other codes in media/

media/formats/webm/opus_packet_builder.h

 // Copyright (c) 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 MEDIA_FORMATS_WEBM_OPUS_PACKET_BUILDER_H_
 #define MEDIA_FORMATS_WEBM_OPUS_PACKET_BUILDER_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <vector>
 
 #include "base/macros.h"
+#include "base/memory/scoped_vector.h"
 
 namespace media {
 
 // From Opus RFC. See https://tools.ietf.org/html/rfc6716#page-14
 enum OpusConstants {
   kNumPossibleOpusConfigs = 32,
   kMinOpusPacketFrameCount = 1,
   kMaxOpusPacketFrameCount = 48
 };
 
 class OpusPacket {
  public:
   OpusPacket(uint8_t config, uint8_t frame_count, bool is_VBR);
   ~OpusPacket();
 
   const uint8_t* data() const;
   int size() const;
   double duration_ms() const;
 
  private:
   std::vector<uint8_t> data_;
   double duration_ms_;
 
   DISALLOW_COPY_AND_ASSIGN(OpusPacket);
 };
 
 // Builds an exhaustive collection of Opus packet configurations.
-std::vector<std::unique_ptr<OpusPacket>> BuildAllOpusPackets();
+ScopedVector<OpusPacket> BuildAllOpusPackets();
 
 }  // namespace media
 
 #endif  // MEDIA_FORMATS_WEBM_OPUS_PACKET_BUILDER_H_