[Loader] Make ThreadableLoader non-RefCounted and be managed by OwnPtr

third_party/WebKit/Source/web/AssociatedURLLoader.h

 /*
  * Copyright (C) 2010, 2011 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 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef AssociatedURLLoader_h
 #define AssociatedURLLoader_h
 
+#include "platform/heap/Handle.h"

[Nate Chapin, 2016/03/09 17:51:09]

Why this include?

[hiroshige, 2016/03/09 19:11:24]

This is according to tyoshino@'s comment and I think this is for e.g.
RefPtrWillBePersistent in Line 64 (not related to this CL though).

 #include "public/platform/WebURLLoader.h"
 #include "public/web/WebURLLoaderOptions.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class DocumentThreadableLoader;
 class WebLocalFrameImpl;
@@ skipping 13 matching lines @@
     void setLoadingTaskRunner(blink::WebTaskRunner*) override;
 
 private:
 
     class ClientAdapter;
 
     RefPtrWillBePersistent<WebLocalFrameImpl> m_frameImpl;
     WebURLLoaderOptions m_options;
     WebURLLoaderClient* m_client;
     OwnPtr<ClientAdapter> m_clientAdapter;
-    RefPtr<DocumentThreadableLoader> m_loader;
+    OwnPtr<DocumentThreadableLoader> m_loader;
 };
 
 } // namespace blink
 
 #endif