Allow MessageFilters to restrict listening to specific message classes

content/browser/renderer_host/websocket_dispatcher_host.cc

Index: content/browser/renderer_host/websocket_dispatcher_host.cc
diff --git a/content/browser/renderer_host/websocket_dispatcher_host.cc b/content/browser/renderer_host/websocket_dispatcher_host.cc
index 0d5383a697e1b86e320d92fc2d89f22bd7e22d91..a9e216e7045724637525e5927ac106ac099b6e8e 100644
--- a/content/browser/renderer_host/websocket_dispatcher_host.cc
+++ b/content/browser/renderer_host/websocket_dispatcher_host.cc
@@ -21,11 +21,17 @@ namespace {
 // fully-qualified every time.
 typedef WebSocketDispatcherHost::WebSocketHostState WebSocketHostState;
 
+const uint32 kFilteredMessageClasses[] = {
+  WebSocketMsgStart,
+};
+
 }  // namespace
 
 WebSocketDispatcherHost::WebSocketDispatcherHost(
     const GetRequestContextCallback& get_context_callback)
-    : get_context_callback_(get_context_callback),
+    : BrowserMessageFilter(
+          kFilteredMessageClasses, arraysize(kFilteredMessageClasses)),
+      get_context_callback_(get_context_callback),
       websocket_host_factory_(
           base::Bind(&WebSocketDispatcherHost::CreateWebSocketHost,
                      base::Unretained(this))) {}
@@ -33,7 +39,9 @@ WebSocketDispatcherHost::WebSocketDispatcherHost(
 WebSocketDispatcherHost::WebSocketDispatcherHost(
     const GetRequestContextCallback& get_context_callback,
     const WebSocketHostFactory& websocket_host_factory)
-    : get_context_callback_(get_context_callback),
+    : BrowserMessageFilter(
+          kFilteredMessageClasses, arraysize(kFilteredMessageClasses)),
+      get_context_callback_(get_context_callback),
       websocket_host_factory_(websocket_host_factory) {}
 
 WebSocketHost* WebSocketDispatcherHost::CreateWebSocketHost(int routing_id) {