go: Replace Logrus with go-logging.

go/src/infra/monitoring/messages/alerts.go

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Package alerts contains structs defined to implement the json format:
 // https://docs.google.com/document/d/10MESGzRy9uAy3Y3-PxUcjiuF3BD3FGGmCNvCjqm3WQQ/preview
 
 package messages
 
 import (
         "os"
         "time"
 
-        "github.com/Sirupsen/logrus"
+        "infra/libs/logging"
 )
 
 var (
         googLoc *time.Location
-        log     = logrus.New()
+        log     = logging.DefaultLogger
 )
 
 const (
         // GoogleTimeZone is the timezone used by the services whose
         // messages this package parses.
         GoogleTimeZone = "UTC"
 )
 
 func init() {
         var err error
@@ skipping 68 matching lines @@
         Step     string
         URL      string
 }
 
 // RegressionRange identifies the bounds of the location of a regression.
 type RegressionRange struct {
         Repo      string
         URL       string
         Revisions []string
 }