Update builder revisions to use new format

Tools/GardeningServer/model/ct-builder-revisions-mock.html

Index: Tools/GardeningServer/model/ct-builder-revisions-mock.html
diff --git a/Tools/GardeningServer/model/ct-builder-revisions-mock.html b/Tools/GardeningServer/model/ct-builder-revisions-mock.html
index 316234c41ab952dfbd3a59fb599b15e7205f9acb..56a83f0f8a99c0f18f278689f19cf14e91be55ae 100644
--- a/Tools/GardeningServer/model/ct-builder-revisions-mock.html
+++ b/Tools/GardeningServer/model/ct-builder-revisions-mock.html
@@ -12,17 +12,21 @@ found in the LICENSE file.
 var kExampleBuilderRevisions =
     {
       "Linux": {
-        "v8": "22785",
-        "chromium": "287303",
-        "nacl": "13580",
-        "blink": "158544"
-       },
-       "Android": {
-        "v8": "22785",
-        "chromium": "287303",
-        "nacl": "13580",
-        "blink": "158543"
-       }
+        "revisions": {
+          "v8": "22785",
+          "chromium": "287303",
+          "nacl": "13580",
+          "blink": "158544"
+        }
+      },
+      "Android": {
+        "revisions": {
+          "v8": "22785",
+          "chromium": "287303",
+          "nacl": "13580",
+          "blink": "158543"
+        }
+      }
     }
 
 window.CTBuilderRevisionsMock = function() {