Milo: Add LogDog annotation stream support.

appengine/cmd/milo/swarming/expectations/build-hang.json

Index: appengine/cmd/milo/swarming/expectations/build-hang.json
diff --git a/appengine/cmd/milo/swarming/expectations/build-hang.json b/appengine/cmd/milo/swarming/expectations/build-hang.json
index b3900fb09b1517693ce2be21763c7b802428daaf..a683793cbd6a5277247864ec3ab425fb90624248 100644
--- a/appengine/cmd/milo/swarming/expectations/build-hang.json
+++ b/appengine/cmd/milo/swarming/expectations/build-hang.json
@@ -17,11 +17,18 @@
       "Alt": ""
     },
     "MainLink": null,
-    "SubLink": null,
+    "SubLink": [
+      {
+        "Label": "stdout",
+        "Img": "",
+        "URL": "foo/stdout",
+        "Alt": ""
+      }
+    ],
     "Progress": null,
     "Started": "2016-06-28T13:23:16.61592Z",
     "Finished": "2016-06-28T16:24:03.24387Z",
-    "Duration": 10807630000114,
+    "Duration": 10846627950000,
     "Type": "Recipe",
     "LevelsDeep": 0,
     "Text": [
@@ -109,6 +116,22 @@
   ],
   "PropertyGroup": [
     {
+      "GroupName": "recipe bootstrap",
+      "Property": null
+    },
+    {
+      "GroupName": "setup_build",
+      "Property": null
+    },
+    {
+      "GroupName": "bot_update",
+      "Property": null
+    },
+    {
+      "GroupName": "Main",
+      "Property": null
+    },
+    {
       "GroupName": "Swarming",
       "Property": [
         {
@@ -125,22 +148,6 @@
           "Value": "1"
         }
       ]
-    },
-    {
-      "GroupName": "recipe bootstrap",
-      "Property": null
-    },
-    {
-      "GroupName": "setup_build",
-      "Property": null
-    },
-    {
-      "GroupName": "bot_update",
-      "Property": null
-    },
-    {
-      "GroupName": "Main",
-      "Property": null
     }
   ],
   "Blame": null