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 a563758752782bc3b31b29fbec5ab0eea1a0cd31..457e082571c661d778bf641efad4dca39eb32ded 100644
--- a/third_party/WebKit/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp
+++ b/third_party/WebKit/Source/modules/indexeddb/InspectorIndexedDBAgent.cpp
@@ -343,14 +343,14 @@ class DatabaseLoader final : public ExecutableWithDatabase {
             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()