Oilpan: Prepare to move ResourceLoader and ResourceLoaderSet to Oilpan heap.

Source/core/fetch/ResourceLoaderSet.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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/fetch/ResourceLoaderSet.h"
 
 #include "wtf/Vector.h"
 
 namespace blink {
 
+PassOwnPtrWillBeRawPtr<ResourceLoaderSet> ResourceLoaderSet::create()
+{
+    return adoptPtrWillBeNoop(new ResourceLoaderSet);
+}
+
+void ResourceLoaderSet::trace(Visitor* visitor)
+{
+#if ENABLE(OILPAN)
+    visitor->trace(m_set);
+#endif
+}
+
 void ResourceLoaderSet::cancelAll()
 {
-    Vector<RefPtr<ResourceLoader> > loadersCopy;
+    WillBeHeapVector<RefPtrWillBeMember<ResourceLoader> > loadersCopy;
     copyToVector(m_set, loadersCopy);
     size_t size = loadersCopy.size();
     for (size_t i = 0; i < size; ++i)
         loadersCopy[i]->cancel();
 }
 
 void ResourceLoaderSet::setAllDefersLoading(bool defers)
 {
-    Vector<RefPtr<ResourceLoader> > loadersCopy;
+    WillBeHeapVector<RefPtrWillBeMember<ResourceLoader> > loadersCopy;
     copyToVector(m_set, loadersCopy);
     size_t size = loadersCopy.size();
     for (size_t i = 0; i < size; ++i)
         loadersCopy[i]->setDefersLoading(defers);
 }
 
 }