Inline StringValue into base::Value

components/sync/syncable/syncable_id.h

 // Copyright 2012 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.
 
 #ifndef COMPONENTS_SYNC_SYNCABLE_SYNCABLE_ID_H_
 #define COMPONENTS_SYNC_SYNCABLE_SYNCABLE_ID_H_
 
 #include <iosfwd>
 #include <limits>
 #include <memory>
 #include <sstream>
 #include <string>
 
 #include "base/containers/hash_tables.h"
 #include "base/trace_event/memory_usage_estimator.h"
 
 namespace base {
-class StringValue;
+class Value;
+using StringValue = Value;
 }  // namespace base
 
 namespace sql {
 class Statement;
 }  // namespace sql
 
 namespace syncer {
 namespace syncable {
 
 class Id;
@@ skipping 70 matching lines @@
 };
 
 inline size_t EstimateMemoryUsage(const Id& id) {
   return base::trace_event::EstimateMemoryUsage(id.value());
 }
 
 }  // namespace syncable
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_SYNCABLE_SYNCABLE_ID_H_