Oilpan: dispose an HTMLImportsController on document detach/removal.

Source/core/html/imports/HTMLImportsController.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 14 matching lines @@
  * 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 HTMLImportsController_h
 #define HTMLImportsController_h
 
 #include "core/dom/DocumentSupplementable.h"
-#include "core/fetch/RawResource.h"
-#include "core/html/LinkResource.h"
-#include "core/html/imports/HTMLImport.h"
-#include "platform/Supplementable.h"
-#include "platform/Timer.h"
+#include "platform/heap/Handle.h"
 #include "wtf/FastAllocBase.h"
-#include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class FetchRequest;
+class HTMLImport;
 class HTMLImportChild;
 class HTMLImportChildClient;
 class HTMLImportLoader;
 class HTMLImportTreeRoot;
+class KURL;
 
 class HTMLImportsController final : public NoBaseWillBeGarbageCollectedFinalized<HTMLImportsController>, public DocumentSupplement {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(HTMLImportsController);
     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(HTMLImportsController);
 public:
     static const char* supplementName();
     static void provideTo(Document&);
     static void removeFrom(Document&);
 
     explicit HTMLImportsController(Document&);
@@ skipping 11 matching lines @@
     size_t loaderCount() const { return m_loaders.size(); }
     HTMLImportLoader* loaderAt(size_t i) const { return m_loaders[i].get(); }
     Document* loaderDocumentAt(size_t) const;
     HTMLImportLoader* loaderFor(const Document&) const;
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     HTMLImportChild* createChild(const KURL&, HTMLImportLoader*, HTMLImport* parent, HTMLImportChildClient*);
 
+    void dispose();
+
     OwnPtrWillBeMember<HTMLImportTreeRoot> m_root;
-    typedef WillBeHeapVector<OwnPtrWillBeMember<HTMLImportLoader>> LoaderList;
+    using LoaderList = WillBeHeapVector<OwnPtrWillBeMember<HTMLImportLoader>>;
     LoaderList m_loaders;
 };
 
 } // namespace blink
 
 #endif // HTMLImportsController_h