Tell IDB frontend about data loss

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 <vector>
 
 #include "content/common/indexed_db/indexed_db_key.h"
 #include "content/common/indexed_db/indexed_db_key_path.h"
@@ skipping 269 matching lines @@
   IPC_STRUCT_MEMBER(int64, max_object_store_id)
   IPC_STRUCT_MEMBER(std::vector<IndexedDBObjectStoreMetadata>, object_stores)
 IPC_STRUCT_END()
 
 IPC_STRUCT_BEGIN(IndexedDBMsg_CallbacksUpgradeNeeded_Params)
   IPC_STRUCT_MEMBER(int32, ipc_thread_id)
   IPC_STRUCT_MEMBER(int32, ipc_callbacks_id)
   IPC_STRUCT_MEMBER(int32, ipc_database_callbacks_id)
   IPC_STRUCT_MEMBER(int32, ipc_database_id)
   IPC_STRUCT_MEMBER(int64, old_version)
+  IPC_STRUCT_MEMBER(int32, data_loss)

[jsbell, 2013/06/14 20:42:58]

Why not bool?

[dgrogan, 2013/06/14 22:06:43]

Originally I had it as enum/int everywhere.

   IPC_STRUCT_MEMBER(IndexedDBDatabaseMetadata, idb_metadata)
 IPC_STRUCT_END()
 
 // Indexed DB messages sent from the browser to the renderer.
 
 // The thread_id needs to be the first parameter in these messages.  In the IO
 // thread on the renderer/client process, an IDB message filter assumes the
 // thread_id is the first int.
 
 // IDBCallback message handlers.
@@ skipping 195 matching lines @@
 
 // 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 */)