LogDog: Add signed GS URL fetching.

logdog/appengine/coordinator/coordinatorTest/storage_cache.go

Index: logdog/appengine/coordinator/coordinatorTest/storage_cache.go
diff --git a/logdog/appengine/coordinator/coordinatorTest/storage_cache.go b/logdog/appengine/coordinator/coordinatorTest/storage_cache.go
deleted file mode 100644
index 594cbef4c0df5a92820d5c035bf826034b050b21..0000000000000000000000000000000000000000
--- a/logdog/appengine/coordinator/coordinatorTest/storage_cache.go
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright 2016 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 coordinatorTest
-
-import (
-	"sync"
-	"time"
-
-	"github.com/luci/luci-go/logdog/common/storage/caching"
-
-	"golang.org/x/net/context"
-)
-
-// StorageCache wraps the default storage cache instance, adding tracking
-// information that is useful for testing.
-type StorageCache struct {
-	Base caching.Cache
-
-	statsMu sync.Mutex
-	stats   StorageCacheStats
-}
-
-// StorageCacheStats expose stats for a StorageCache instance.
-type StorageCacheStats struct {
-	Puts   int
-	Hits   int
-	Misses int
-}
-
-// Clear clears the stats for this cache instance.
-func (sc *StorageCache) Clear() {
-	sc.statsMu.Lock()
-	defer sc.statsMu.Unlock()
-	sc.stats = StorageCacheStats{}
-}
-
-// Stats returns the stats for this cache instance.
-func (sc *StorageCache) Stats() StorageCacheStats {
-	sc.statsMu.Lock()
-	defer sc.statsMu.Unlock()
-	return sc.stats
-}
-
-// Get implements caching.Cache.
-func (sc *StorageCache) Get(c context.Context, items ...*caching.Item) {
-	sc.Base.Get(c, items...)
-
-	// Calculate our hit/misses from the result.
-	sc.statsMu.Lock()
-	defer sc.statsMu.Unlock()
-	for _, it := range items {
-		if it.Data != nil {
-			sc.stats.Hits++
-		} else {
-			sc.stats.Misses++
-		}
-	}
-
-}
-
-// Put implements caching.Cache.
-func (sc *StorageCache) Put(c context.Context, exp time.Duration, items ...*caching.Item) {
-	sc.Base.Put(c, exp, items...)
-
-	sc.statsMu.Lock()
-	defer sc.statsMu.Unlock()
-	sc.stats.Puts += len(items)
-}