Remove legacy IDB backend IPC glue for string-based references.

content/common/indexed_db/proxy_webidbtransaction_impl.cc

Index: content/common/indexed_db/proxy_webidbtransaction_impl.cc
diff --git a/content/common/indexed_db/proxy_webidbtransaction_impl.cc b/content/common/indexed_db/proxy_webidbtransaction_impl.cc
index d72dc15bc28fa3d87d985e731b99003d8e431eb0..033c3e54ddcba2bab0cea4e06bf6617ef076ef31 100644
--- a/content/common/indexed_db/proxy_webidbtransaction_impl.cc
+++ b/content/common/indexed_db/proxy_webidbtransaction_impl.cc
@@ -33,18 +33,6 @@ RendererWebIDBTransactionImpl::~RendererWebIDBTransactionImpl() {
 }
 
 WebIDBObjectStore* RendererWebIDBTransactionImpl::objectStore(
-    const WebString& name,
-    WebKit::WebExceptionCode& ec) {
-  int object_store_ipc_id;
-  IndexedDBDispatcher::Send(
-      new IndexedDBHostMsg_TransactionObjectStoreOld(
-          idb_transaction_id_, name, &object_store_ipc_id, &ec));
-  if (!object_store_ipc_id)
-    return NULL;
-  return new RendererWebIDBObjectStoreImpl(object_store_ipc_id);
-}
-
-WebIDBObjectStore* RendererWebIDBTransactionImpl::objectStore(
     long long object_store_id,
     WebKit::WebExceptionCode& ec) {
   int idb_object_store_id;