Allow MessageFilters to restrict listening to specific message classes

content/browser/renderer_host/pepper/pepper_renderer_connection.cc

Index: content/browser/renderer_host/pepper/pepper_renderer_connection.cc
diff --git a/content/browser/renderer_host/pepper/pepper_renderer_connection.cc b/content/browser/renderer_host/pepper/pepper_renderer_connection.cc
index 1c00388870c5b254849799224c1bcee0811f3a15..f20562e8689bffca2cc7ea6984ef1830f1619637 100644
--- a/content/browser/renderer_host/pepper/pepper_renderer_connection.cc
+++ b/content/browser/renderer_host/pepper/pepper_renderer_connection.cc
@@ -26,6 +26,11 @@ namespace content {
 
 namespace {
 
+const uint32 kFilteredMessageClasses[] = {
+  PpapiMsgStart,
+  ViewMsgStart,
+};
+
 // Responsible for creating the pending resource hosts, holding their IDs until
 // all of them have been created for a single message, and sending the reply to
 // say that the hosts have been created.
@@ -87,7 +92,9 @@ PendingHostCreator::~PendingHostCreator() {
 }  // namespace
 
 PepperRendererConnection::PepperRendererConnection(int render_process_id)
-    : render_process_id_(render_process_id) {
+    : BrowserMessageFilter(
+          kFilteredMessageClasses, arraysize(kFilteredMessageClasses)),
+      render_process_id_(render_process_id) {
   // Only give the renderer permission for stable APIs.
   in_process_host_.reset(new BrowserPpapiHostImpl(this,
                                                   ppapi::PpapiPermissions(),