Remove OwnPtr from Blink.

third_party/WebKit/Source/modules/filesystem/FileSystemClient.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 18 matching lines @@
  */
 
 #ifndef FileSystemClient_h
 #define FileSystemClient_h
 
 #include "modules/ModulesExport.h"
 #include "platform/FileSystemType.h"
 #include "wtf/Allocator.h"
 #include "wtf/Forward.h"
 #include "wtf/Noncopyable.h"
+#include <memory>
 
 namespace blink {
 
 class ExecutionContext;
 class LocalFrame;
 class ContentSettingCallbacks;
 class WorkerClients;
 
 class FileSystemClient {
     USING_FAST_MALLOC(FileSystemClient);
     WTF_MAKE_NONCOPYABLE(FileSystemClient);
 public:
     FileSystemClient() { }
     virtual ~FileSystemClient() { }
 
     virtual bool requestFileSystemAccessSync(ExecutionContext*) = 0;
-    virtual void requestFileSystemAccessAsync(ExecutionContext*, PassOwnPtr<ContentSettingCallbacks>) = 0;
+    virtual void requestFileSystemAccessAsync(ExecutionContext*, std::unique_ptr<ContentSettingCallbacks>) = 0;
 };
 
-MODULES_EXPORT void provideLocalFileSystemTo(LocalFrame&, PassOwnPtr<FileSystemClient>);
+MODULES_EXPORT void provideLocalFileSystemTo(LocalFrame&, std::unique_ptr<FileSystemClient>);
 
-MODULES_EXPORT void provideLocalFileSystemToWorker(WorkerClients*, PassOwnPtr<FileSystemClient>);
+MODULES_EXPORT void provideLocalFileSystemToWorker(WorkerClients*, std::unique_ptr<FileSystemClient>);
 
 } // namespace blink
 
 #endif // FileSystemClient_h