Add Function based profile tree

runtime/observatory/lib/src/elements/function_ref.html

Index: runtime/observatory/lib/src/elements/function_ref.html
diff --git a/runtime/observatory/lib/src/elements/function_ref.html b/runtime/observatory/lib/src/elements/function_ref.html
index dd713355141d384ec979254af0ba1bf5519dc1de..c9499b39a72886fb8192fcc1d03331ff405d8cc0 100644
--- a/runtime/observatory/lib/src/elements/function_ref.html
+++ b/runtime/observatory/lib/src/elements/function_ref.html
@@ -3,15 +3,7 @@
 <link rel="import" href="service_ref.html">
 
 <polymer-element name="function-ref" extends="service-ref">
-  <template><link rel="stylesheet" href="css/shared.css" /><!-- These comments are here to allow newlines.
-     --><template if="{{ ref.isDart }}"><!--
-       --><template if="{{ qualified && ref.parent == null && ref.owningClass != null }}"><!--
-       --><class-ref ref="{{ ref.owningClass] }}"></class-ref>.</template><!--
-     --><template if="{{ qualified && ref.parent != null }}"><!--
-       --><function-ref ref="{{ ref.parent }}" qualified="{{ true }}">
-          </function-ref>.<!--
-     --></template><a on-click="{{ goto }}" _href="{{ url }}">{{ name }}</a><!--
-  --></template><template if="{{ !ref.isDart }}"><span> {{ name }}</span></template></template>
+  <template><link rel="stylesheet" href="css/shared.css"></template>
 </polymer-element>
 
 <script type="application/dart" src="function_ref.dart"></script>