Rename all existing custom element classes as V0

third_party/WebKit/Source/core/dom/custom/V0CustomElement.h

Index: third_party/WebKit/Source/core/dom/custom/V0CustomElement.h
diff --git a/third_party/WebKit/Source/core/dom/custom/CustomElement.h b/third_party/WebKit/Source/core/dom/custom/V0CustomElement.h
similarity index 87%
rename from third_party/WebKit/Source/core/dom/custom/CustomElement.h
rename to third_party/WebKit/Source/core/dom/custom/V0CustomElement.h
index 5e44f16e76300e6a111bfcb65a9b33566ad1e1d6..c37fbe2afe5cca3b6d45ed2f684643dac1635dc7 100644
--- a/third_party/WebKit/Source/core/dom/custom/CustomElement.h
+++ b/third_party/WebKit/Source/core/dom/custom/V0CustomElement.h
@@ -28,11 +28,11 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef CustomElement_h
-#define CustomElement_h
+#ifndef V0CustomElement_h
+#define V0CustomElement_h
 
 #include "core/CoreExport.h"
-#include "core/dom/custom/CustomElementDefinition.h"
+#include "core/dom/custom/V0CustomElementDefinition.h"
 #include "wtf/Allocator.h"
 #include "wtf/HashMap.h"
 #include "wtf/Vector.h"
@@ -40,12 +40,12 @@
 
 namespace blink {
 
-class CustomElementMicrotaskImportStep;
+class V0CustomElementMicrotaskImportStep;
 class Document;
 class HTMLImportChild;
 
-class CORE_EXPORT CustomElement {
-    STATIC_ONLY(CustomElement);
+class CORE_EXPORT V0CustomElement {
+    STATIC_ONLY(V0CustomElement);
 public:
     enum NameSet {
         EmbedderNames = 1 << 0,
@@ -56,11 +56,11 @@ public:
     static void addEmbedderCustomElementName(const AtomicString& name);
 
     // API to notify of document-level changes
-    static CustomElementMicrotaskImportStep* didCreateImport(HTMLImportChild*);
+    static V0CustomElementMicrotaskImportStep* didCreateImport(HTMLImportChild*);
     static void didFinishLoadingImport(Document& master);
 
     // API for registration contexts
-    static void define(Element*, CustomElementDefinition*);
+    static void define(Element*, V0CustomElementDefinition*);
 
     // API for Element to kick off changes
 
@@ -75,4 +75,4 @@ private:
 
 } // namespace blink
 
-#endif // CustomElement_h
+#endif // V0CustomElement_h