Revert "Allow MessageFilters to restrict listening to specific message classes"

content/browser/service_worker/service_worker_dispatcher_host.cc

Index: content/browser/service_worker/service_worker_dispatcher_host.cc
diff --git a/content/browser/service_worker/service_worker_dispatcher_host.cc b/content/browser/service_worker/service_worker_dispatcher_host.cc
index 162047ccb9ad4fdd7d11cea917394bd086320027..8710ee96a0911ae54699a8ce2d65b3a50cd51885 100644
--- a/content/browser/service_worker/service_worker_dispatcher_host.cc
+++ b/content/browser/service_worker/service_worker_dispatcher_host.cc
@@ -24,20 +24,13 @@ const char kDisabledErrorMessage[] =
 const char kDomainMismatchErrorMessage[] =
     "Scope and scripts do not have the same origin";
 
-const uint32 kFilteredMessageClasses[] = {
-  ServiceWorkerMsgStart,
-  EmbeddedWorkerMsgStart,
-};
-
 }  // namespace
 
 namespace content {
 
 ServiceWorkerDispatcherHost::ServiceWorkerDispatcherHost(
     int render_process_id)
-    : BrowserMessageFilter(
-          kFilteredMessageClasses, arraysize(kFilteredMessageClasses)),
-      render_process_id_(render_process_id) {
+    : render_process_id_(render_process_id) {
 }
 
 ServiceWorkerDispatcherHost::~ServiceWorkerDispatcherHost() {