Prepare for move-only PassOwnPtr in the remaining directories.

third_party/WebKit/Source/platform/exported/WebFileSystemCallbacks.cpp

 /*
  * 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 27 matching lines @@
 #include "public/platform/WebFileWriter.h"
 #include "public/platform/WebString.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 
 class WebFileSystemCallbacksPrivate : public RefCounted<WebFileSystemCallbacksPrivate> {
 public:
-    static PassRefPtr<WebFileSystemCallbacksPrivate> create(const PassOwnPtr<AsyncFileSystemCallbacks>& callbacks)
+    static PassRefPtr<WebFileSystemCallbacksPrivate> create(PassOwnPtr<AsyncFileSystemCallbacks> callbacks)
     {
-        return adoptRef(new WebFileSystemCallbacksPrivate(callbacks));
+        return adoptRef(new WebFileSystemCallbacksPrivate(std::move(callbacks)));
     }
 
     AsyncFileSystemCallbacks* callbacks() { return m_callbacks.get(); }
 
 private:
-    WebFileSystemCallbacksPrivate(const PassOwnPtr<AsyncFileSystemCallbacks>& callbacks) : m_callbacks(callbacks) { }
+    WebFileSystemCallbacksPrivate(PassOwnPtr<AsyncFileSystemCallbacks> callbacks) : m_callbacks(std::move(callbacks)) { }
     OwnPtr<AsyncFileSystemCallbacks> m_callbacks;
 };
 
-WebFileSystemCallbacks::WebFileSystemCallbacks(const PassOwnPtr<AsyncFileSystemCallbacks>& callbacks)
+WebFileSystemCallbacks::WebFileSystemCallbacks(PassOwnPtr<AsyncFileSystemCallbacks>&& callbacks)
 {
-    m_private = WebFileSystemCallbacksPrivate::create(callbacks);
+    m_private = WebFileSystemCallbacksPrivate::create(std::move(callbacks));
 }
 
 void WebFileSystemCallbacks::reset()
 {
     m_private.reset();
 }
 
 void WebFileSystemCallbacks::assign(const WebFileSystemCallbacks& other)
 {
     m_private = other.m_private;
@@ skipping 73 matching lines @@
     m_private.reset();
 }
 
 bool WebFileSystemCallbacks::shouldBlockUntilCompletion() const
 {
     ASSERT(!m_private.isNull());
     return m_private->callbacks()->shouldBlockUntilCompletion();
 }
 
 } // namespace blink