DevTools: straw man adaptable implementation.

third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js

Index: third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js b/third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js
index 37b1f2269346894dfe6a25d6a8a3a0882c75f12a..d0e72683e1399b311b8d73491b3ac67157f40ac6 100644
--- a/third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js
+++ b/third_party/WebKit/Source/devtools/front_end/sdk/DOMModel.js
@@ -928,7 +928,7 @@ WebInspector.DOMNode.prototype = {
                 if (object)
                     fulfill(object)
                 else
-                    reject(null);
+                    reject(new Error());
             }
         }
     },
@@ -2212,3 +2212,24 @@ WebInspector.DOMModel.fromTarget = function(target)
 {
     return /** @type {?WebInspector.DOMModel} */ (target.model(WebInspector.DOMModel));
 }
+
+/**
+ * @constructor
+ * @implements {Runtime.Adapter}
+ */
+WebInspector.DOMNode.ToRemoteObject = function()
+{
+}
+
+WebInspector.DOMNode.ToRemoteObject.prototype = {
+    /**
+     * @override
+     * @param {!Object} from
+     * @return {!Promise<?Object>}
+     */
+    adapt: function(from)
+    {
+        var domNode = /** @type {!WebInspector.DOMNode} */ (from);
+        return /** @type {!Promise<?Object>} */ (domNode.resolveToObjectPromise("leaky"));
+    }
+}