Allow MessageFilters to restrict listening to specific message classes

content/browser/resolve_proxy_msg_helper.cc

Index: content/browser/resolve_proxy_msg_helper.cc
diff --git a/content/browser/resolve_proxy_msg_helper.cc b/content/browser/resolve_proxy_msg_helper.cc
index 52d0987edb947295289d03c21f18725c0a692c59..098174e861ba8d0d59c7521df9863225991907d6 100644
--- a/content/browser/resolve_proxy_msg_helper.cc
+++ b/content/browser/resolve_proxy_msg_helper.cc
@@ -13,15 +13,24 @@
 #include "net/url_request/url_request_context_getter.h"
 
 namespace content {
+namespace {
+const uint32 kFilteredMessageClasses[] = {
+  ViewMsgStart
+};
+}  // namespace
 
 ResolveProxyMsgHelper::ResolveProxyMsgHelper(
     net::URLRequestContextGetter* getter)
-    : context_getter_(getter),
+    : BrowserMessageFilter(
+          kFilteredMessageClasses, arraysize(kFilteredMessageClasses)),
+      context_getter_(getter),
       proxy_service_(NULL) {
 }
 
 ResolveProxyMsgHelper::ResolveProxyMsgHelper(net::ProxyService* proxy_service)
-    : proxy_service_(proxy_service) {
+    : BrowserMessageFilter(
+          kFilteredMessageClasses, arraysize(kFilteredMessageClasses)),
+      proxy_service_(proxy_service) {
 }
 
 bool ResolveProxyMsgHelper::OnMessageReceived(const IPC::Message& message,