Implement icon attribute for menuitem

Source/bindings/core/v8/custom/V8DevToolsHostCustom.cpp

Index: Source/bindings/core/v8/custom/V8DevToolsHostCustom.cpp
diff --git a/Source/bindings/core/v8/custom/V8DevToolsHostCustom.cpp b/Source/bindings/core/v8/custom/V8DevToolsHostCustom.cpp
index b34fa9029033d69808873f511a2b120798e60057..93eb1f6bcc9d61e071a0f8a8d39fa1fb2ad6c603 100644
--- a/Source/bindings/core/v8/custom/V8DevToolsHostCustom.cpp
+++ b/Source/bindings/core/v8/custom/V8DevToolsHostCustom.cpp
@@ -73,6 +73,7 @@ static bool populateContextMenuItems(const v8::Local<v8::Array>& itemArray, Cont
         if (typeString == "separator") {
             ContextMenuItem item(ContextMenuItem(SeparatorType,
                 ContextMenuItemCustomTagNoAction,
+                String(),
                 String()));
             menu.appendItem(item);
         } else if (typeString == "subMenu" && subItems->IsArray()) {
@@ -84,12 +85,13 @@ static bool populateContextMenuItems(const v8::Local<v8::Array>& itemArray, Cont
             ContextMenuItem item(SubmenuType,
                 ContextMenuItemCustomTagNoAction,
                 labelString,
+                String(),
                 &subMenu);
             menu.appendItem(item);
         } else {
             ContextMenuAction typedId = static_cast<ContextMenuAction>(ContextMenuItemBaseCustomTag + id->ToInt32(isolate)->Value());
             TOSTRING_DEFAULT(V8StringResource<TreatNullAsNullString>, labelString, label, false);
-            ContextMenuItem menuItem((typeString == "checkbox" ? CheckableActionType : ActionType), typedId, labelString);
+            ContextMenuItem menuItem((typeString == "checkbox" ? CheckableActionType : ActionType), typedId, labelString, String());
             if (checked->IsBoolean())
                 menuItem.setChecked(checked->ToBoolean(isolate)->Value());
             if (enabled->IsBoolean())