Add safe blob-over-IPC transfer from browser->renderer for IDB.

content/common/indexed_db/indexed_db_messages.h

 // Copyright (c) 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.
 
 // Message definition file, included multiple times, hence no include guard.
 
 #include <utility>
 #include <vector>
 
 #include "content/common/indexed_db/indexed_db_key.h"
@@ skipping 404 matching lines @@
                      IndexedDBHostMsg_FactoryGetDatabaseNames_Params)
 
 // WebIDBFactory::open() message.
 IPC_MESSAGE_CONTROL1(IndexedDBHostMsg_FactoryOpen,
                      IndexedDBHostMsg_FactoryOpen_Params)
 
 // WebIDBFactory::deleteDatabase() message.
 IPC_MESSAGE_CONTROL1(IndexedDBHostMsg_FactoryDeleteDatabase,
                      IndexedDBHostMsg_FactoryDeleteDatabase_Params)
 
+IPC_MESSAGE_CONTROL1(IndexedDBHostMsg_AckReceivedBlobs,
+                     std::vector<std::string>) /* uuids */
+
 // WebIDBDatabase::createObjectStore() message.
 IPC_MESSAGE_CONTROL1(IndexedDBHostMsg_DatabaseCreateObjectStore,
                      IndexedDBHostMsg_DatabaseCreateObjectStore_Params)
 
 // WebIDBDatabase::deleteObjectStore() message.
 IPC_MESSAGE_CONTROL3(IndexedDBHostMsg_DatabaseDeleteObjectStore,
                      int32, /* ipc_database_id */
                      int64, /* transaction_id */
                      int64) /* object_store_id */
 
@@ skipping 65 matching lines @@
                      int64) /* transaction_id */
 
 // WebIDBDatabase::commit() message.
 IPC_MESSAGE_CONTROL2(IndexedDBHostMsg_DatabaseCommit,
                      int32, /* ipc_database_id */
                      int64) /* transaction_id */
 
 // WebIDBDatabase::~WebIDBCursor() message.
 IPC_MESSAGE_CONTROL1(IndexedDBHostMsg_CursorDestroyed,
                      int32 /* ipc_cursor_id */)