Convert //chromecast from scoped_ptr to std::unique_ptr

chromecast/common/media/shared_memory_chunk.h

 // Copyright 2014 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 CHROMECAST_COMMON_MEDIA_SHARED_MEMORY_CHUNK_H_
 #define CHROMECAST_COMMON_MEDIA_SHARED_MEMORY_CHUNK_H_
 
 #include <stddef.h>
 
+#include <memory>
+
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "chromecast/media/cma/ipc/media_memory_chunk.h"
 
 namespace base {
 class SharedMemory;
 }
 
 namespace chromecast {
 namespace media {
 
 class SharedMemoryChunk : public MediaMemoryChunk {
  public:
-  SharedMemoryChunk(scoped_ptr<base::SharedMemory> shared_mem,
+  SharedMemoryChunk(std::unique_ptr<base::SharedMemory> shared_mem,
                     size_t size);
   ~SharedMemoryChunk() override;
 
   // MediaMemoryChunk implementation.
   void* data() const override;
   size_t size() const override;
   bool valid() const override;
 
  private:
-  scoped_ptr<base::SharedMemory> shared_mem_;
+  std::unique_ptr<base::SharedMemory> shared_mem_;
   size_t size_;
 
   DISALLOW_COPY_AND_ASSIGN(SharedMemoryChunk);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
-#endif  // CHROMECAST_COMMON_MEDIA_SHARED_MEMORY_CHUNK_H_
+#endif  // CHROMECAST_COMMON_MEDIA_SHARED_MEMORY_CHUNK_H_