Revert "Revert "Add presubmit checks to look for BUG= and TEST= tags in change list description.""

PRESUBMIT.py

Index: PRESUBMIT.py
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index d73d5667267881c7e0fa10accba10362f4f32d2e..c2f0b77947aa9db7db09c581bd5fa138954c32f3 100755
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -40,14 +40,18 @@ def ReadFile(path):
 def CheckChangeOnUpload(input_api, output_api):
   # TODO(maruel): max_cols is temporarily disabled. Reenable once the source
   # tree is in better shape.
-  return LocalChecks(input_api, output_api, max_cols=0)
+  return (LocalChecks(input_api, output_api, max_cols=0) +
+      input_api.canned_checks.CheckChangeHasBugField(input_api, output_api) +
+      input_api.canned_checks.CheckChangeHasTestField(input_api, output_api))
 
 
 def CheckChangeOnCommit(input_api, output_api):
   # TODO(maruel): max_cols is temporarily disabled. Reenable once the source
   # tree is in better shape.
   return (LocalChecks(input_api, output_api, max_cols=0) +
-          input_api.canned_checks.CheckDoNotSubmit(input_api, output_api))
+      input_api.canned_checks.CheckDoNotSubmit(input_api, output_api) +
+      input_api.canned_checks.CheckChangeHasBugField(input_api, output_api) +
+      input_api.canned_checks.CheckChangeHasTestField(input_api, output_api))
 
 
 def LocalChecks(input_api, output_api, max_cols=80):