Move "common/config" common types into cfgtypes.

logdog/server/collector/coordinator/cache.go

Index: logdog/server/collector/coordinator/cache.go
diff --git a/logdog/server/collector/coordinator/cache.go b/logdog/server/collector/coordinator/cache.go
index 7c1445ebd89c6fd2518532176e649a49318ca201..41e064b819892214a83b2edab108d0b348c997d9 100644
--- a/logdog/server/collector/coordinator/cache.go
+++ b/logdog/server/collector/coordinator/cache.go
@@ -9,7 +9,6 @@ import (
 	"time"
 
 	"github.com/luci/luci-go/common/clock"
-	"github.com/luci/luci-go/common/config"
 	"github.com/luci/luci-go/common/data/caching/lru"
 	"github.com/luci/luci-go/common/errors"
 	log "github.com/luci/luci-go/common/logging"
@@ -17,6 +16,7 @@ import (
 	"github.com/luci/luci-go/common/tsmon/field"
 	"github.com/luci/luci-go/common/tsmon/metric"
 	"github.com/luci/luci-go/logdog/common/types"
+	"github.com/luci/luci-go/luci_config/common/cfgtypes"
 	"golang.org/x/net/context"
 )
 
@@ -126,7 +126,7 @@ func (c *cache) TerminateStream(ctx context.Context, r *TerminateRequest) error
 
 // cacheEntryKey is the LRU key for a cacheEntry.
 type cacheEntryKey struct {
-	project config.ProjectName
+	project cfgtypes.ProjectName
 	path    types.StreamPath
 }