Align IndexedDB metadata rollback on transaction abort to spec.

third_party/WebKit/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp

Index: third_party/WebKit/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp
diff --git a/third_party/WebKit/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp b/third_party/WebKit/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp
index 305c1060b1f1b5463cb14e168ec332b68c6e1012..840e167bcd267209bcfc8fd963f76f9542458870 100644
--- a/third_party/WebKit/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp
+++ b/third_party/WebKit/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp
@@ -313,12 +313,12 @@ public:
         std::unique_ptr<protocol::Array<protocol::IndexedDB::ObjectStore>> objectStores = protocol::Array<protocol::IndexedDB::ObjectStore>::create();
 
         for (const auto& storeMapEntry : databaseMetadata.objectStores) {
-            const IDBObjectStoreMetadata& objectStoreMetadata = storeMapEntry.value;
+            const IDBObjectStoreMetadata& objectStoreMetadata = *storeMapEntry.value;
 
             std::unique_ptr<protocol::Array<protocol::IndexedDB::ObjectStoreIndex>> indexes = protocol::Array<protocol::IndexedDB::ObjectStoreIndex>::create();
 
             for (const auto& metadataMapEntry : objectStoreMetadata.indexes) {
-                const IDBIndexMetadata& indexMetadata = metadataMapEntry.value;
+                const IDBIndexMetadata& indexMetadata = *metadataMapEntry.value;
 
                 std::unique_ptr<ObjectStoreIndex> objectStoreIndex = ObjectStoreIndex::create()
                     .setName(indexMetadata.name)