Remove ScopedVector from audio/video renderer related code in media/

media/base/decoder_factory.cc

 // Copyright 2016 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.
 
 #include "media/base/decoder_factory.h"
 
 #include "base/single_thread_task_runner.h"
 
 namespace media {
 
 DecoderFactory::DecoderFactory() {}
 
 DecoderFactory::~DecoderFactory() {}
 
 void DecoderFactory::CreateAudioDecoders(
     scoped_refptr<base::SingleThreadTaskRunner> task_runner,
-    ScopedVector<AudioDecoder>* audio_decoders) {}
+    std::vector<std::unique_ptr<AudioDecoder>>* audio_decoders) {}
 
 void DecoderFactory::CreateVideoDecoders(
     scoped_refptr<base::SingleThreadTaskRunner> task_runner,
     GpuVideoAcceleratorFactories* gpu_factories,
-    ScopedVector<VideoDecoder>* video_decoders) {}
+    std::vector<std::unique_ptr<VideoDecoder>>* video_decoders) {}
 
 }  // namespace media