Push registration should read a "gcm_user_visible_only" key from the Manifest.

content/renderer/push_messaging_dispatcher.cc

Index: content/renderer/push_messaging_dispatcher.cc
diff --git a/content/renderer/push_messaging_dispatcher.cc b/content/renderer/push_messaging_dispatcher.cc
index 3289257fe92919d05aef10c12315f532d3a39e34..57a7f8bb86aef90a3180f5b502ec5eab626dbc31 100644
--- a/content/renderer/push_messaging_dispatcher.cc
+++ b/content/renderer/push_messaging_dispatcher.cc
@@ -68,13 +68,17 @@ void PushMessagingDispatcher::DoRegister(
     return;
   }
 
+  PushRegistrationParams params;
+  params.sender_id = manifest.gcm_sender_id.is_null()
+      ? std::string() : base::UTF16ToUTF8(manifest.gcm_sender_id.string());
+  params.user_visible_only = manifest.gcm_user_visible_only;
+  params.user_gesture =
+      blink::WebUserGestureIndicator::isProcessingUserGesture();
+
   Send(new PushMessagingHostMsg_Register(
       routing_id(),
       callbacks_id,
-      manifest.gcm_sender_id.is_null()
-          ? std::string()
-          : base::UTF16ToUTF8(manifest.gcm_sender_id.string()),
-      blink::WebUserGestureIndicator::isProcessingUserGesture(),
+      params,
       service_worker_provider_id));
 }