[ServiceWorker] Set setSkipServiceWorker flag of the request from NPAPI plugins

content/renderer/npapi/webplugin_impl.cc

Index: content/renderer/npapi/webplugin_impl.cc
diff --git a/content/renderer/npapi/webplugin_impl.cc b/content/renderer/npapi/webplugin_impl.cc
index 16dc08a15eac4fa5adf08257e595f83867c5f45e..4370dec79222cc9477692a4dc2ee52dbdbe742cf 100644
--- a/content/renderer/npapi/webplugin_impl.cc
+++ b/content/renderer/npapi/webplugin_impl.cc
@@ -734,6 +734,8 @@ WebPluginImpl::RoutingStatus WebPluginImpl::RouteToFrame(
   request.setFirstPartyForCookies(
       webframe_->document().firstPartyForCookies());
   request.setHasUserGesture(popups_allowed);
+  // ServiceWorker is disabled for NPAPI.
+  request.setSkipServiceWorker(true);
   if (len > 0) {
     if (!SetPostData(&request, buf, len)) {
       // Uhoh - we're in trouble.  There isn't a good way
@@ -1288,6 +1290,8 @@ bool WebPluginImpl::InitiateHTTPRequest(unsigned long resource_id,
   // (RequestContextPlugin)?
   info.request.setRequestContext(WebURLRequest::RequestContextPlugin);
   info.request.setHTTPMethod(WebString::fromUTF8(method));
+  // ServiceWorker is disabled for NPAPI.
+  info.request.setSkipServiceWorker(true);
   info.pending_failure_notification = false;
   info.notify_redirects = notify_redirects;
   info.is_plugin_src_load = is_plugin_src_load;