indexeddb: make setVersion fire blocked event if other connections are open

chrome/common/indexed_db_messages.h

Index: chrome/common/indexed_db_messages.h
diff --git a/chrome/common/indexed_db_messages.h b/chrome/common/indexed_db_messages.h
index 6852cfb6d939e5a902a4734f95e250810f5061df..002a9c1ed090c19e75c0bd625acec42fe5324c7b 100644
--- a/chrome/common/indexed_db_messages.h
+++ b/chrome/common/indexed_db_messages.h
@@ -250,6 +250,8 @@ IPC_MESSAGE_CONTROL3(IndexedDBMsg_CallbacksError,
                      int32 /* response_id */,
                      int /* code */,
                      string16 /* message */)
+IPC_MESSAGE_CONTROL1(IndexedDBMsg_CallbacksBlocked,
+                     int32 /* response_id */)
 
 // IDBTransactionCallback message handlers.
 IPC_MESSAGE_CONTROL1(IndexedDBMsg_TransactionCallbacksAbort,
@@ -351,6 +353,10 @@ IPC_SYNC_MESSAGE_CONTROL4_2(IndexedDBHostMsg_DatabaseTransaction,
                             WebKit::WebExceptionCode /* ec */)
 
 // WebIDBDatabase::close() message.
+IPC_MESSAGE_CONTROL1(IndexedDBHostMsg_DatabaseOpen,
+                     int32 /* idb_database_id */)
+
+// WebIDBDatabase::close() message.
 IPC_MESSAGE_CONTROL1(IndexedDBHostMsg_DatabaseClose,
                      int32 /* idb_database_id */)