Testing & supporting new HTMLTemplateElement

sdk/lib/html/dartium/html_dartium.dart

Index: sdk/lib/html/dartium/html_dartium.dart
diff --git a/sdk/lib/html/dartium/html_dartium.dart b/sdk/lib/html/dartium/html_dartium.dart
index 496f6403e372ddb60a76c02c565284b45cde95ee..f21db339df64828995bf0aee972ae57fa286e447 100644
--- a/sdk/lib/html/dartium/html_dartium.dart
+++ b/sdk/lib/html/dartium/html_dartium.dart
@@ -19822,9 +19822,18 @@ class TableSectionElement extends _Element_Merged {
 
 @DocsEditable
 @DomName('HTMLTemplateElement')
+@SupportedBrowser(SupportedBrowser.CHROME)
+@Experimental
 class TemplateElement extends _Element_Merged {
   TemplateElement.internal() : super.internal();
 
+  @DomName('HTMLTemplateElement.HTMLTemplateElement')
+  @DocsEditable
+  factory TemplateElement() => document.$dom_createElement("template");
+
+  /// Checks if this type is supported on the current platform.
+  static bool get supported => true;
+
   @DomName('HTMLTemplateElement.content')
   @DocsEditable
   DocumentFragment get content native "HTMLTemplateElement_content_Getter";