Move custom element code to core/dom/custom/

Source/core/dom/custom/CustomElementRegistrationContext.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:
  *
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ 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 CustomElementRegistrationContext_h
 #define CustomElementRegistrationContext_h
 
-#include "core/dom/CustomElementDescriptor.h"
-#include "core/dom/CustomElementRegistry.h"
-#include "core/dom/CustomElementUpgradeCandidateMap.h"
 #include "core/dom/QualifiedName.h"
+#include "core/dom/custom/CustomElementDescriptor.h"
+#include "core/dom/custom/CustomElementRegistry.h"
+#include "core/dom/custom/CustomElementUpgradeCandidateMap.h"
 #include "wtf/HashMap.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/text/AtomicString.h"
 
 namespace WebCore {
 
 class CustomElementConstructorBuilder;
 class CustomElementDefinition;
 class Document;
 class Element;
@@ skipping 32 matching lines @@
     CustomElementRegistry m_registry;
 
     // Element creation
     CustomElementUpgradeCandidateMap m_candidates;
 };
 
 }
 
 #endif // CustomElementRegistrationContext_h