Support parameter passing for shadow-dom.js's createShadowRoot

LayoutTests/fast/dom/shadow/resources/shadow-dom.js

Index: LayoutTests/fast/dom/shadow/resources/shadow-dom.js
diff --git a/LayoutTests/fast/dom/shadow/resources/shadow-dom.js b/LayoutTests/fast/dom/shadow/resources/shadow-dom.js
index 65555417228c62c13ff557f3186ffe767ca2f3f9..aabb1841349dc8f0f3d16900b441bad0aa8b3c24 100644
--- a/LayoutTests/fast/dom/shadow/resources/shadow-dom.js
+++ b/LayoutTests/fast/dom/shadow/resources/shadow-dom.js
@@ -1,10 +1,22 @@
 function createShadowRoot()
 {
     var children = Array.prototype.slice.call(arguments);
-    if ((children[0] instanceof Object) && !(children[0] instanceof Node))
-        return {'isShadowRoot': true,
-                'attributes': children[0],
-                'children': children.slice(1)};
+    if ((children[0] instanceof Object) && !(children[0] instanceof Node)) {
+        var attributes = {};
+        var parameter = {};
+        for (var key in children[0]) {
+            if (key == 'mode')
+                parameter[key] = children[0][key];
+            else
+                attributes[key] = children[0][key];
+        }
+        var obj = {'isShadowRoot': true,

[hayato, 2015/06/09 04:34:38]

Nit:  I'd prefer returning obj as is here, e.g. return {,,,, 'parameter':
parameter}.

Then we'll judge whether child.parameter is empty or not, later, in L45.

e.g.
 if (isEmpty(child.parameter))
  shadowRoot = ...

 

[kochi, 2015/06/09 04:46:57]

Done.

+                   'attributes': attributes,
+                   'children': children.slice(1)};
+        if (Object.keys(parameter).length > 0)
+            obj['parameter'] = parameter;
+        return obj;
+    }
     return {'isShadowRoot': true,
             'children': children};
 }
@@ -30,7 +42,10 @@ function createDOM(tagName, attributes)
             if (child.isUserAgentShadowRoot) {
                 shadowRoot = window.internals.createUserAgentShadowRoot(element);
             } else {
-                shadowRoot = element.createShadowRoot();
+                if (child.parameter)
+                    shadowRoot = element.createShadowRoot(child.parameter);
+                else
+                    shadowRoot = element.createShadowRoot();
             }
             if (child.attributes) {
                 for (var attribute in child.attributes) {