Change mojo enums to be scoped enums in the generated C++ bindings.

content/browser/media/cdm/browser_cdm_manager.cc

Index: content/browser/media/cdm/browser_cdm_manager.cc
diff --git a/content/browser/media/cdm/browser_cdm_manager.cc b/content/browser/media/cdm/browser_cdm_manager.cc
index 2f997d078cab44930716cb60510a15ff8b7c50f4..c83bdd213149ab4b97240dc79543f21629afbd28 100644
--- a/content/browser/media/cdm/browser_cdm_manager.cc
+++ b/content/browser/media/cdm/browser_cdm_manager.cc
@@ -670,7 +670,7 @@ void BrowserCdmManager::CheckPermissionStatusOnUIThread(
       PermissionType::PROTECTED_MEDIA_IDENTIFIER, security_origin,
       web_contents->GetLastCommittedURL().GetOrigin());
 
-  bool allowed = (permission_status == PERMISSION_STATUS_GRANTED);
+  bool allowed = (permission_status == PermissionStatus::GRANTED);
   if (!task_runner_->RunsTasksOnCurrentThread()) {
     task_runner_->PostTask(FROM_HERE,
                            base::Bind(permission_status_cb, allowed));