[milo] fix tests on windows.

milo/frontend/main.go

 // Copyright 2015 The LUCI Authors. All rights reserved.
 // Use of this source code is governed under the Apache License, Version 2.0
 // that can be found in the LICENSE file.
 
 package frontend
 
 import (
         "net/http"
 
         "github.com/golang/protobuf/proto"
@@ skipping 12 matching lines @@
         "github.com/luci/luci-go/milo/frontend/console"
         "github.com/luci/luci-go/milo/rpc"
         "github.com/luci/luci-go/server/router"
 )
 
 func emptyPrelude(c context.Context, methodName string, req proto.Message) (context.Context, error) {
         return c, nil
 }
 
 // Where it all begins!!!
-func Run() {
+func Run(templatePath string) {
         // Register plain ol' http handlers.
         r := router.New()
         gaemiddleware.InstallHandlers(r)
 
-        basemw := common.Base("templates")
+        basemw := common.Base(templatePath)
         r.GET("/", basemw, frontpageHandler)
 
         // Admin and cron endpoints.
         r.GET("/admin/update", basemw.Extend(gaemiddleware.RequireCron), UpdateConfigHandler)
         r.GET("/admin/configs", basemw, ConfigsHandler)
 
         // Console
         r.GET("/console/:project/:name", basemw, console.ConsoleHandler)
         r.GET("/console/:project", basemw, console.Main)
 
@@ skipping 29 matching lines @@
         })
         milo.RegisterBuildInfoServer(&api, &milo.DecoratedBuildInfo{
                 Service: &rpc.BuildInfoService{},
                 Prelude: emptyPrelude,
         })
         discovery.Enable(&api)
         api.InstallHandlers(r, gaemiddleware.BaseProd())
 
         http.DefaultServeMux.Handle("/", r)
 }