nebraska: Clean up TODOs.

Created bugs for TODOs and added links in comments.

BUG=chromium:914939,chromium:914936
TEST=None

Change-Id: I102d4dc5c985b31fbe5cc650d0433c18d397835f
Reviewed-on: https://chromium-review.googlesource.com/1376660
Commit-Ready: Colin Howes <chowes@google.com>
Tested-by: Colin Howes <chowes@google.com>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
diff --git a/nebraska/nebraska.py b/nebraska/nebraska.py
index b20770f..d66f53b 100755
--- a/nebraska/nebraska.py
+++ b/nebraska/nebraska.py
@@ -152,10 +152,10 @@
       logging.error("Request string is not valid XML (%s)", str(err))
       raise ValueError
 
-    # TODO(chowes): It would be better to specifically check the platform app.
-    # An install is signalled by omitting the update check for the platform
-    # app, which can be found based on the presense of a hardware_class tag,
-    # which is absent on DLC update and install requests. UE does not currently
+    # TODO(http://crbug.com/914936): It would be better to specifically check
+    # the platform app. An install is signalled by omitting the update check
+    # for the platform app, which can be found based on the presense of a
+    # hardware_class tag, which is absent for DLC appids. UE does not currently
     # omit hardware_class for DLCs, so we assume that if we have one appid for
     # which the update_check tag is omitted, it is the platform app and this is
     # an install request. This assumption should be fine since we never mix
@@ -495,9 +495,9 @@
     Returns:
       True if the app matches the given request, False otherwise.
     """
-    # TODO(chowes): We only account for tip/branch versions. We need to be able
-    # to handle full version strings as well as developer builds that don't have
-    # a "real" final version component.
+    # TODO(http://crbug.com/914939): We only account for tip/branch versions. We
+    # need to be able to handle full version strings as well as developer builds
+    # that don't have a "real" final version component.
 
     if self.appid != request.appid:
       return False