[WIP not ready for review] ServiceWorker Download support.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index df70a011bf97a45271eb3f3906a5dd709b1fc197..33d921124ff15ae47095906ad175eb2974ad062f 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -3229,9 +3229,18 @@ void RenderFrameImpl::loadURLExternally(const blink::WebURLRequest& request,
                                         bool should_replace_current_entry) {
   Referrer referrer(RenderViewImpl::GetReferrerFromRequest(frame_, request));
   if (policy == blink::WebNavigationPolicyDownload) {
-    Send(new FrameHostMsg_DownloadUrl(render_view_->GetRoutingID(),
-                                      GetRoutingID(), request.url(), referrer,
-                                      suggested_name));
+    ServiceWorkerNetworkProvider* provider =
+        ServiceWorkerNetworkProvider::FromDocumentState(
+            DocumentState::FromDataSource(frame_->dataSource()));
+    DCHECK(provider);
+    FrameHostMsg_DownloadUrl_Params params;
+    params.render_view_id = render_view_->GetRoutingID();
+    params.render_frame_id = GetRoutingID();
+    params.service_worker_provider_id = provider->provider_id();
+    params.url = request.url();
+    params.referrer = referrer;
+    params.suggested_name = suggested_name;
+    Send(new FrameHostMsg_DownloadUrl(params));
   } else {
     OpenURL(request.url(), IsHttpPost(request),
             GetRequestBodyForWebURLRequest(request),