Extend silk benchmark of navigation drawer

This CL adds a second test case for inbox_app's navigation drawer that toggles
the drawer open and closed using the toolbar button.

R=nduca@chromium.org
BUG=332439

Review URL: https://codereview.chromium.org/130433003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@243956 0039d316-1c4b-4281-b951-d872f2087c98

tools/perf/page_sets/key_silk_cases.json

@@ -136,7 +136,25 @@
       "smoothness": { "action": "wait", "seconds": 5 }
     },
     {
-      "url": "file://key_silk_cases/inbox_app.html",
+      "url": "file://key_silk_cases/inbox_app.html?toggle_drawer",
+      "navigate_steps" : [
+        { "action": "navigate" },
+        { "action": "wait", "seconds": 2 }
+      ],
+      "smoothness": {
+        "action": "toggle_drawer",
+        "repeat": 6
+      },
+      "toggle_drawer": [
+        {
+          "action": "click_element",
+          "selector": "#menu-button"
+        },
+        { "action": "wait", "seconds": 1 }
+      ]
+    },
+    {
+      "url": "file://key_silk_cases/inbox_app.html?slide_drawer",
       "navigate_steps" : [
         { "action": "navigate" },
         { "action": "wait", "seconds": 2 }

tools/perf/page_sets/key_silk_cases/inbox_app.html

@@ -2658,7 +2658,10 @@ polymer-ui-icon {
     </app-frame>
     <script>
       document.addEventListener('WebComponentsReady', function() {
-      // document.getElementById('menu-button').addEventListener('click', function() {
+        document.getElementById('nav-drawer').toggle();
+      });
+
+      document.getElementById('menu-button').addEventListener('click', function() {
         document.getElementById('nav-drawer').toggle();
       });
     </script>