Update APIs to use new Google cloud paths.

logdog/client/butler/output/pubsub/pubsubOutput.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 pubsub
 
 import (
         "bytes"
         "errors"
         "fmt"
         "sync"
         "time"
 
+        "cloud.google.com/go/pubsub"
         "github.com/luci/luci-go/common/data/recordio"
         gcps "github.com/luci/luci-go/common/gcloud/pubsub"
         log "github.com/luci/luci-go/common/logging"
         "github.com/luci/luci-go/common/retry"
         "github.com/luci/luci-go/logdog/api/logpb"
         "github.com/luci/luci-go/logdog/client/butler/output"
         "github.com/luci/luci-go/logdog/client/butlerproto"
         "github.com/luci/luci-go/logdog/common/types"
         "golang.org/x/net/context"
-        "google.golang.org/cloud/pubsub"
 )
 
 // Topic is an interface for a Pub/Sub topic.
 //
 // pubsub.Topic implements Topic.
 type Topic interface {
         // Name returns the name of the topic.
         Name() string
 
         // Publish mirrors the pubsub.Connection Publish method.
@@ skipping 186 matching lines @@
 // indefiniteRetry is a retry.Iterator that will indefinitely retry errors with
 // a maximum backoff.
 func indefiniteRetry() retry.Iterator {
         return &retry.ExponentialBackoff{
                 Limited: retry.Limited{
                         Retries: -1,
                 },
                 MaxDelay: 30 * time.Second,
         }
 }