Adding new sync performance tests to chromium perf dashboard

perf/dashboard/overview.html

Index: perf/dashboard/overview.html
===================================================================
--- perf/dashboard/overview.html	(revision 94321)
+++ perf/dashboard/overview.html	(working copy)
@@ -126,6 +126,7 @@
         </tr>
         <tr>
             <script>DisplayGraph("xp-release-single-core/new-tab-ui-warm");</script>
+            <script>DisplayGraph("xp-release-single-core/sync");</script>
         </tr>
       </table>
 
@@ -158,6 +159,7 @@
         </tr>
         <tr>
             <script>DisplayGraph("vista-release-dual-core/new-tab-ui-warm");</script>
+            <script>DisplayGraph("vista-release-dual-core/sync");</script>
         </tr>
       </table>
 
@@ -190,6 +192,7 @@
         </tr>
         <tr>
             <script>DisplayGraph("vista-release-single-core/new-tab-ui-warm");</script>
+            <script>DisplayGraph("vista-release-single-core/sync");</script>
         </tr>
       </table>
       <h1 id="Chromium-Linux">Chromium Linux</h1>
@@ -219,6 +222,9 @@
             <script>DisplayGraph("linux-release-hardy/dromaeo_jslib");</script>
             <script>DisplayGraph("linux-release-hardy/new-tab-ui-warm");</script>
         </tr>
+        <tr>
+            <script>DisplayGraph("linux-release-hardy/sync");</script>
+        </tr>
       </table>
       <h1 id="Chromium-Linux-LowMem">Chromium Linux LowMem</h1>
       <table>
@@ -242,6 +248,9 @@
             <script>DisplayGraph("linux-release-lowmem/dom_perf");</script>
             <script>DisplayGraph("linux-release-lowmem/morejs");</script>
         </tr>
+        <tr>
+            <script>DisplayGraph("linux-release-lowmem/sync");</script>
+        </tr>
       </table>
       <h1 id="Chromium-Mac10.5">Chromium Mac 10.5</h1>
       <table>
@@ -272,6 +281,7 @@
         </tr>
         <tr>
             <script>DisplayGraph("mac-release-10.5/new-tab-ui-warm");</script>
+            <script>DisplayGraph("mac-release-10.5/sync");</script>
         </tr>
       </table>
       <h1 id="Chromium-Mac10.6">Chromium Mac 10.6</h1>
@@ -303,6 +313,7 @@
         </tr>
         <tr>
             <script>DisplayGraph("mac-release-10.6/new-tab-ui-warm");</script>
+            <script>DisplayGraph("mac-release-10.6/sync");</script>
         </tr>
       </table>
     </center>