[DevTools] Do not inherit SDK.DOMNode from SDK.SDKObject

third_party/WebKit/Source/devtools/front_end/elements/ElementStatePaneWidget.js

Index: third_party/WebKit/Source/devtools/front_end/elements/ElementStatePaneWidget.js
diff --git a/third_party/WebKit/Source/devtools/front_end/elements/ElementStatePaneWidget.js b/third_party/WebKit/Source/devtools/front_end/elements/ElementStatePaneWidget.js
index cda86e624771937f7a75e4b13cac86895e5df1b2..4ebd15ac387efb8b790d5951e2b2827dd41d02ca 100644
--- a/third_party/WebKit/Source/devtools/front_end/elements/ElementStatePaneWidget.js
+++ b/third_party/WebKit/Source/devtools/front_end/elements/ElementStatePaneWidget.js
@@ -21,7 +21,7 @@ Elements.ElementStatePaneWidget = class extends UI.Widget {
       var node = UI.context.flavor(SDK.DOMNode);
       if (!node)
         return;
-      SDK.CSSModel.fromNode(node).forcePseudoState(node, event.target.state, event.target.checked);
+      node.domModel().cssModel().forcePseudoState(node, event.target.state, event.target.checked);
     }
 
     /**
@@ -79,9 +79,9 @@ Elements.ElementStatePaneWidget = class extends UI.Widget {
     if (node)
       node = node.enclosingElementOrSelf();
 
-    this._updateModel(node ? SDK.CSSModel.fromNode(node) : null);
+    this._updateModel(node ? node.domModel().cssModel() : null);
     if (node) {
-      var nodePseudoState = SDK.CSSModel.fromNode(node).pseudoState(node);
+      var nodePseudoState = node.domModel().cssModel().pseudoState(node);
       for (var input of this._inputs) {
         input.disabled = !!node.pseudoType();
         input.checked = nodePseudoState.indexOf(input.state) >= 0;