[ServiceWorker] Set setSkipServiceWorker flag of the request from plugins with private permission.

content/renderer/pepper/pepper_url_loader_host.cc

Index: content/renderer/pepper/pepper_url_loader_host.cc
diff --git a/content/renderer/pepper/pepper_url_loader_host.cc b/content/renderer/pepper/pepper_url_loader_host.cc
index 9a6ce723a213cf8af0ea85750ccbfcad4ce5e8bc..5f70dfa83b7123381c913c30da5407cbf87fe398 100644
--- a/content/renderer/pepper/pepper_url_loader_host.cc
+++ b/content/renderer/pepper/pepper_url_loader_host.cc
@@ -259,6 +259,10 @@ int32_t PepperURLLoaderHost::InternalOnHostMsgOpen(
 
   web_request.setRequestContext(WebURLRequest::RequestContextPlugin);
   web_request.setRequestorProcessID(renderer_ppapi_host_->GetPluginPID());
+  // The requests from the plugins with private permission which can bypass same
+  // origin must skip the ServiceWorker.
+  web_request.setSkipServiceWorker(
+      host()->permissions().HasPermission(ppapi::PERMISSION_PRIVATE));
 
   WebURLLoaderOptions options;
   if (has_universal_access_) {