[polymer] rename d-auto-binding to auto-binding-dart

pkg/polymer/test/auto_binding_test.html

Index: pkg/polymer/test/auto_binding_test.html
diff --git a/pkg/polymer/test/auto_binding_test.html b/pkg/polymer/test/auto_binding_test.html
index b724b0c1f5bf91316f157cb6cdf06c9fa88d073b..ba1f13f5a0957e96ba9438d13decb66fd2ad897a 100644
--- a/pkg/polymer/test/auto_binding_test.html
+++ b/pkg/polymer/test/auto_binding_test.html
@@ -17,11 +17,11 @@ BSD-style license that can be found in the LICENSE file.
 
     <div>top</div>
 
-    <template id="one" is="d-auto-binding">
+    <template id="one" is="auto-binding-dart">
       <h2 id="h" on-tap="{{eventAction}}">{{greeting}}</h2>
     </template>
 
-    <template id="two" is="d-auto-binding">
+    <template id="two" is="auto-binding-dart">
       <div>Say something: <input value="{{value}}"></div>
       <div>You said: {{value}}</div>
     </template>