Finish moving service protocol to json rpc.

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

 <link rel="import" href="../../../../packages/polymer/polymer.html">
 <link rel="import" href="code_ref.html">
 <link rel="import" href="function_ref.html">
 <link rel="import" href="nav_bar.html">
 <link rel="import" href="observatory_element.html">
 <link rel="import" href="sliding_checkbox.html">
 
 <polymer-element name="cpu-profile" extends="observatory-element">
   <template>
     <link rel="stylesheet" href="css/shared.css">
     <nav-bar>
       <top-nav-menu></top-nav-menu>
       <isolate-nav-menu isolate="{{ isolate }}"></isolate-nav-menu>
-      <nav-menu link="{{ '/profiler' + isolate.link }}" anchor="cpu profile" last="{{ true }}"></nav-menu>
+      <nav-menu link="{{ makeLink('/profiler', isolate) }}" anchor="cpu profile" last="{{ true }}"></nav-menu>
       <nav-refresh callback="{{ refresh }}"></nav-refresh>
       <nav-control></nav-control>
     </nav-bar>
     <style>
       .table {
         border-collapse: collapse!important;
         width: 100%;
         margin-bottom: 20px
       }
       .table thead > tr > th,
@@ skipping 124 matching lines @@
           </tr>
         </thead>
         <tbody id="tableTreeBody">
         </tbody>
       </table>
     </div>
   </template>
 </polymer-element>
 
 <script type="application/dart" src="cpu_profile.dart"></script>