Rename DOMPoint to WebKitPoint in C++ sides.

Source/core/frame/LocalDOMWindow.h

Index: Source/core/frame/LocalDOMWindow.h
diff --git a/Source/core/frame/LocalDOMWindow.h b/Source/core/frame/LocalDOMWindow.h
index 5b68803c82949be1da6b5902ce4cdd1018121871..19c4edeec52013bb9388442f1963d750a18834d9 100644
--- a/Source/core/frame/LocalDOMWindow.h
+++ b/Source/core/frame/LocalDOMWindow.h
@@ -43,7 +43,7 @@ namespace blink {
     class CSSRuleList;
     class CSSStyleDeclaration;
     class Console;
-    class DOMPoint;
+    class WebKitPoint;
     class DOMSelection;
     class DOMURL;
     class DOMWindowProperty;
@@ -218,8 +218,8 @@ enum PageshowEventPersistence {
         PassRefPtrWillBeRawPtr<CSSRuleList> getMatchedCSSRules(Element*, const String& pseudoElt) const;
         double devicePixelRatio() const;
 
-        PassRefPtrWillBeRawPtr<DOMPoint> webkitConvertPointFromPageToNode(Node*, const DOMPoint*) const;
-        PassRefPtrWillBeRawPtr<DOMPoint> webkitConvertPointFromNodeToPage(Node*, const DOMPoint*) const;
+        PassRefPtrWillBeRawPtr<WebKitPoint> webkitConvertPointFromPageToNode(Node*, const WebKitPoint*) const;
+        PassRefPtrWillBeRawPtr<WebKitPoint> webkitConvertPointFromNodeToPage(Node*, const WebKitPoint*) const;
 
         Console& console() const;
         FrameConsole* frameConsole() const;