Create a message filter for message port messages. This allows a nice cleanu...

chrome/common/worker_messages_internal.h

 // Copyright (c) 2009 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.
 
 #include <utility>
 #include <vector>
 #include "base/string16.h"
 #include "googleurl/src/gurl.h"
 #include "ipc/ipc_message_macros.h"
 
@@ skipping 58 matching lines @@
 // Sends the browser all the queued messages that arrived at this message port
 // after it was sent in a postMessage call.
 // NOTE: MSVS can't compile the macro if std::vector<std::pair<string16, int> >
 // is used, so we typedef it in worker_messages.h.
 IPC_MESSAGE_CONTROL2(WorkerProcessHostMsg_SendQueuedMessages,
                      int /* message_port_id */,
                      std::vector<QueuedMessage> /* queued_messages */)
 
 // Sent by the worker process to check whether access to web databases is
 // granted by content settings.
-IPC_SYNC_MESSAGE_ROUTED4_1(WorkerProcessHostMsg_AllowDatabase,
-                           GURL /* origin url */,
-                           string16 /* database name */,
-                           string16 /* database display name */,
-                           unsigned long /* estimated size */,
-                           bool /* result */)
+IPC_SYNC_MESSAGE_CONTROL5_1(WorkerProcessHostMsg_AllowDatabase,
+                            int /* worker_route_id */,
+                            GURL /* origin url */,
+                            string16 /* database name */,
+                            string16 /* database display name */,
+                            unsigned long /* estimated size */,
+                            bool /* result */)
 
 //-----------------------------------------------------------------------------
 // Worker messages
 // These are messages sent from the renderer process to the worker process.
 IPC_MESSAGE_ROUTED3(WorkerMsg_StartWorkerContext,
                     GURL /* url */,
                     string16  /* user_agent */,
                     string16  /* source_code */)
 
 IPC_MESSAGE_ROUTED0(WorkerMsg_TerminateWorkerContext)
@@ skipping 24 matching lines @@
 
 IPC_MESSAGE_ROUTED1(WorkerHostMsg_ConfirmMessageFromWorkerObject,
                     bool /* bool has_pending_activity */)
 
 IPC_MESSAGE_ROUTED1(WorkerHostMsg_ReportPendingActivity,
                     bool /* bool has_pending_activity */)
 
 IPC_MESSAGE_CONTROL1(WorkerHostMsg_WorkerContextClosed,
                      int /* worker_route_id */)
 IPC_MESSAGE_ROUTED0(WorkerHostMsg_WorkerContextDestroyed)