workers: Introduce a WorkerMessageFilter to ease routing/processing worker messages.

content/child/child_thread.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.
 
 #ifndef CONTENT_CHILD_CHILD_THREAD_H_
 #define CONTENT_CHILD_CHILD_THREAD_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 19 matching lines @@
 class MessageFilter;
 class SyncChannel;
 class SyncMessageFilter;
 }  // namespace IPC
 
 namespace blink {
 class WebFrame;
 }  // namespace blink
 
 namespace content {
-class BluetoothMessageFilter;
+class ChildMessageFilter;
 class ChildDiscardableSharedMemoryManager;
 class ChildGpuMemoryBufferManager;
 class ChildHistogramMessageFilter;
 class ChildResourceMessageFilter;
 class ChildSharedBitmapManager;
 class FileSystemDispatcher;
-class GeofencingMessageFilter;
 class NavigatorConnectDispatcher;
 class NotificationDispatcher;
 class PushDispatcher;
 class ServiceWorkerMessageFilter;
 class QuotaDispatcher;
 class QuotaMessageFilter;
 class ResourceDispatcher;
 class ThreadSafeSender;
 class WebSocketDispatcher;
 struct RequestInfo;
@@ skipping 219 matching lines @@
 
   scoped_ptr<ChildDiscardableSharedMemoryManager>
       discardable_shared_memory_manager_;
 
   // Observes the trace event system. When tracing is enabled, optionally
   // starts profiling the tcmalloc heap.
   scoped_ptr<base::debug::TraceMemoryController> trace_memory_controller_;
 
   scoped_ptr<base::PowerMonitor> power_monitor_;
 
-  scoped_refptr<GeofencingMessageFilter> geofencing_message_filter_;
-
-  scoped_refptr<BluetoothMessageFilter> bluetooth_message_filter_;
+  scoped_refptr<ChildMessageFilter> geofencing_message_filter_;
+  scoped_refptr<ChildMessageFilter> bluetooth_message_filter_;
 
   scoped_refptr<NavigatorConnectDispatcher> navigator_connect_dispatcher_;
 
   bool in_browser_process_;
 
   base::WeakPtrFactory<ChildThread> channel_connected_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildThread);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_CHILD_THREAD_H_