Allow MessageFilters to restrict listening to specific message classes

content/browser/loader/resource_scheduler_filter.cc

Index: content/browser/loader/resource_scheduler_filter.cc
diff --git a/content/browser/loader/resource_scheduler_filter.cc b/content/browser/loader/resource_scheduler_filter.cc
index 66e9ea4fbd045e1cc69dc48b4731bb363df37619..ac8c3e37741f827871dfb0002492f499bfe96404 100644
--- a/content/browser/loader/resource_scheduler_filter.cc
+++ b/content/browser/loader/resource_scheduler_filter.cc
@@ -10,9 +10,16 @@
 #include "content/public/common/page_transition_types.h"
 
 namespace content {
+namespace {
+const uint32 kFilteredMessageClasses[] = {
+  ViewMsgStart,
+};
+}  // namespace
 
 ResourceSchedulerFilter::ResourceSchedulerFilter(int child_id)
-    : child_id_(child_id) {
+    : BrowserMessageFilter(
+          kFilteredMessageClasses, arraysize(kFilteredMessageClasses)),
+      child_id_(child_id) {
 }
 
 ResourceSchedulerFilter::~ResourceSchedulerFilter() {