IndexedDB: Remove DOMStringList special case for transaction()

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

Index: third_party/WebKit/Source/modules/indexeddb/IDBDatabase.cpp
diff --git a/third_party/WebKit/Source/modules/indexeddb/IDBDatabase.cpp b/third_party/WebKit/Source/modules/indexeddb/IDBDatabase.cpp
index 092bc162e2406e6532e540773205832c19fa6fb5..90620e1eff281ac4e4cf5de55cdb1056446df452 100644
--- a/third_party/WebKit/Source/modules/indexeddb/IDBDatabase.cpp
+++ b/third_party/WebKit/Source/modules/indexeddb/IDBDatabase.cpp
@@ -350,7 +350,7 @@ void IDBDatabase::deleteObjectStore(const String& name,
 
 IDBTransaction* IDBDatabase::transaction(
     ScriptState* script_state,
-    const StringOrStringSequenceOrDOMStringList& store_names,
+    const StringOrStringSequence& store_names,
     const String& mode_string,
     ExceptionState& exception_state) {
   IDB_TRACE("IDBDatabase::transaction");
@@ -362,10 +362,6 @@ IDBTransaction* IDBDatabase::transaction(
   } else if (store_names.isStringSequence()) {
     for (const String& name : store_names.getAsStringSequence())
       scope.insert(name);
-  } else if (store_names.isDOMStringList()) {
-    const Vector<String>& list = *store_names.getAsDOMStringList();
-    for (const String& name : list)
-      scope.insert(name);
   } else {
     NOTREACHED();
   }