IPC plumbing for IndexedDB to snapshot metadata to the renderer.

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"
 #include "content/common/indexed_db/indexed_db_key_range.h"
+#include "content/common/indexed_db/indexed_db_metadata.h"
 #include "content/common/indexed_db/indexed_db_param_traits.h"
 #include "content/public/common/serialized_script_value.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_param_traits.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebExceptionCode.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBObjectStore.h"
 
 #define IPC_MESSAGE_START IndexedDBMsgStart
 
 // Argument structures used in messages
@@ skipping 280 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)
 
+// WebIDBDatabase::metadata() message.
+IPC_SYNC_MESSAGE_CONTROL1_1(IndexedDBHostMsg_DatabaseMetadata,
+                            int32, /* idb_database_id */
+                            content::IndexedDBDatabaseMetadata /* metadata */)
+
 // WebIDBDatabase::name() message.
 IPC_SYNC_MESSAGE_CONTROL1_1(IndexedDBHostMsg_DatabaseName,
                             int32, /* idb_database_id */
                             string16 /* name */)
 
 // WebIDBDatabase::version() message.
 IPC_SYNC_MESSAGE_CONTROL1_1(IndexedDBHostMsg_DatabaseVersion,
                             int32, /* idb_database_id */
                             string16 /* version */)
 
@@ skipping 221 matching lines @@
 IPC_MESSAGE_CONTROL1(IndexedDBHostMsg_TransactionAbort,
                      int32 /* idb_transaction_id */)
 
 // IDBTransaction::DidCompleteTaskEvents() message.
 IPC_MESSAGE_CONTROL1(IndexedDBHostMsg_TransactionDidCompleteTaskEvents,
                      int32 /* idb_transaction_id */)
 
 // WebIDBTransaction::~WebIDBTransaction() message.
 IPC_MESSAGE_CONTROL1(IndexedDBHostMsg_TransactionDestroyed,
                      int32 /* idb_transaction_id */)