Rename all existing custom element classes as V0

third_party/WebKit/Source/core/dom/custom/V0CustomElementObserver.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 10 matching lines @@
  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * 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 CustomElementObserver_h
-#define CustomElementObserver_h
+#ifndef V0CustomElementObserver_h
+#define V0CustomElementObserver_h
 
 #include "platform/heap/Handle.h"
 #include "wtf/HashMap.h"
 
 namespace blink {
 
 class Element;
 
-class CustomElementObserver : public GarbageCollectedFinalized<CustomElementObserver> {
+class V0CustomElementObserver : public GarbageCollectedFinalized<V0CustomElementObserver> {
 public:
-    virtual ~CustomElementObserver() { }
+    virtual ~V0CustomElementObserver() { }
 
     // API for CustomElement to kick off notifications
     static void notifyElementWasDestroyed(Element*);
 
     DEFINE_INLINE_VIRTUAL_TRACE() { }
 
 protected:
-    CustomElementObserver() { }
+    V0CustomElementObserver() { }
 
     void observe(Element*);
     void unobserve(Element*);
 
     virtual void elementWasDestroyed(Element* element) { unobserve(element); }
 };
 
 } // namespace blink
 
-#endif // CustomElementObserver_h
+#endif // V0CustomElementObserver_h