Allow MessageFilters to restrict listening to specific message classes

content/browser/loader/resource_message_filter.cc

Index: content/browser/loader/resource_message_filter.cc
diff --git a/content/browser/loader/resource_message_filter.cc b/content/browser/loader/resource_message_filter.cc
index c3f30ff796e06de40acb969e466f3a0a821e8eff..159df12b63a607b0098b00f15135cc8e9091e436 100644
--- a/content/browser/loader/resource_message_filter.cc
+++ b/content/browser/loader/resource_message_filter.cc
@@ -7,10 +7,16 @@
 #include "content/browser/appcache/chrome_appcache_service.h"
 #include "content/browser/fileapi/chrome_blob_storage_context.h"
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
+#include "content/common/resource_messages.h"
 #include "content/public/browser/resource_context.h"
 #include "webkit/browser/fileapi/file_system_context.h"
 
 namespace content {
+namespace {
+const uint32 kFilteredMessageClasses[] = {
+  ResourceMsgStart,
+};
+}  // namespace
 
 ResourceMessageFilter::ResourceMessageFilter(
     int child_id,
@@ -19,7 +25,9 @@ ResourceMessageFilter::ResourceMessageFilter(
     ChromeBlobStorageContext* blob_storage_context,
     fileapi::FileSystemContext* file_system_context,
     const GetContextsCallback& get_contexts_callback)
-    : child_id_(child_id),
+    : BrowserMessageFilter(
+          kFilteredMessageClasses, arraysize(kFilteredMessageClasses)),
+      child_id_(child_id),
       process_type_(process_type),
       appcache_service_(appcache_service),
       blob_storage_context_(blob_storage_context),