Allow MessageFilters to restrict listening to specific message classes

content/browser/worker_host/worker_message_filter.cc

Index: content/browser/worker_host/worker_message_filter.cc
diff --git a/content/browser/worker_host/worker_message_filter.cc b/content/browser/worker_host/worker_message_filter.cc
index b3320947e923072cf70ba1a3c9a0467714ee8fc6..c2eb3432f326a3389424f2b741149de667bb27ea 100644
--- a/content/browser/worker_host/worker_message_filter.cc
+++ b/content/browser/worker_host/worker_message_filter.cc
@@ -11,13 +11,20 @@
 #include "content/public/browser/resource_context.h"
 
 namespace content {
+namespace {
+const uint32 kFilteredMessageClasses[] = {
+  ViewMsgStart
+};
+}  // namespace
 
 WorkerMessageFilter::WorkerMessageFilter(
     int render_process_id,
     ResourceContext* resource_context,
     const WorkerStoragePartition& partition,
     MessagePortMessageFilter* message_port_message_filter)
-    : render_process_id_(render_process_id),
+    : BrowserMessageFilter(
+          kFilteredMessageClasses, arraysize(kFilteredMessageClasses)),
+      render_process_id_(render_process_id),
       resource_context_(resource_context),
       partition_(partition),
       message_port_message_filter_(message_port_message_filter) {