Add user_gesture bit back to Mojo PermissionService methods.

content/renderer/notification_permission_dispatcher.cc

Index: content/renderer/notification_permission_dispatcher.cc
diff --git a/content/renderer/notification_permission_dispatcher.cc b/content/renderer/notification_permission_dispatcher.cc
index f038b5c2dfb923791270ad6efc08bde70796e07e..ddf7cfef597fcec02cfb2a8149106579839fc904 100644
--- a/content/renderer/notification_permission_dispatcher.cc
+++ b/content/renderer/notification_permission_dispatcher.cc
@@ -13,6 +13,7 @@
 #include "third_party/WebKit/public/platform/WebString.h"
 #include "third_party/WebKit/public/platform/modules/permissions/permission_status.mojom-blink.h"
 #include "third_party/WebKit/public/platform/modules/permissions/permission_status.mojom.h"
+#include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 #include "third_party/WebKit/public/web/modules/notifications/WebNotificationPermissionCallback.h"
 
 using blink::WebNotificationPermissionCallback;
@@ -39,6 +40,7 @@ void NotificationPermissionDispatcher::RequestPermission(
   // callbacks, will be deleted before the "this" instance is deleted.
   permission_service_->RequestPermission(
       blink::mojom::PermissionName::NOTIFICATIONS, origin.toString().utf8(),
+      blink::WebUserGestureIndicator::isProcessingUserGesture(),
       base::Bind(&NotificationPermissionDispatcher::OnPermissionRequestComplete,
                  base::Unretained(this),
                  base::Passed(std::move(owned_callback))));