Make DOMType the root of DOM implementation types.

client/dom/generated/src/frog/HTMLFrameElement.dart

 
-class HTMLFrameElementJS extends HTMLElementJS implements HTMLFrameElement native "*HTMLFrameElement" {
+class HTMLFrameElementJs extends HTMLElementJs implements HTMLFrameElement native "*HTMLFrameElement" {
 
-  DocumentJS get contentDocument() native "return this.contentDocument;";
+  DocumentJs get contentDocument() native "return this.contentDocument;";
 
-  DOMWindowJS get contentWindow() native "return this.contentWindow;";
+  DOMWindowJs get contentWindow() native "return this.contentWindow;";
 
   String get frameBorder() native "return this.frameBorder;";
 
   void set frameBorder(String value) native "this.frameBorder = value;";
 
   int get height() native "return this.height;";
 
   String get location() native "return this.location;";
 
   void set location(String value) native "this.location = value;";
@@ skipping 21 matching lines @@
   String get scrolling() native "return this.scrolling;";
 
   void set scrolling(String value) native "this.scrolling = value;";
 
   String get src() native "return this.src;";
 
   void set src(String value) native "this.src = value;";
 
   int get width() native "return this.width;";
 
-  SVGDocumentJS getSVGDocument() native;
+  SVGDocumentJs getSVGDocument() native;
 }