[WIP not ready for review] ServiceWorker Download support.

content/browser/frame_host/render_frame_message_filter.cc

Index: content/browser/frame_host/render_frame_message_filter.cc
diff --git a/content/browser/frame_host/render_frame_message_filter.cc b/content/browser/frame_host/render_frame_message_filter.cc
index 573b5d9082ab756b54c90d5dcbef57e78e97c63f..73675e2df89859a91c512fb2c813c52e7856d937 100644
--- a/content/browser/frame_host/render_frame_message_filter.cc
+++ b/content/browser/frame_host/render_frame_message_filter.cc
@@ -267,6 +267,7 @@ void RenderFrameMessageFilter::OnDestruct() const {
 
 void RenderFrameMessageFilter::DownloadUrl(int render_view_id,
                                            int render_frame_id,
+                                           int service_worker_provider_id,
                                            const GURL& url,
                                            const Referrer& referrer,
                                            const base::string16& suggested_name,
@@ -281,6 +282,7 @@ void RenderFrameMessageFilter::DownloadUrl(int render_view_id,
   parameters->set_suggested_name(suggested_name);
   parameters->set_prompt(use_prompt);
   parameters->set_referrer(referrer);
+  parameters->set_service_worker_provider_id(service_worker_provider_id);
 
   if (url.SchemeIsBlob()) {
     ChromeBlobStorageContext* blob_context =
@@ -341,13 +343,10 @@ void RenderFrameMessageFilter::CheckPolicyForCookies(
 }
 
 void RenderFrameMessageFilter::OnDownloadUrl(
-    int render_view_id,
-    int render_frame_id,
-    const GURL& url,
-    const Referrer& referrer,
-    const base::string16& suggested_name) {
-  DownloadUrl(render_view_id, render_frame_id, url, referrer, suggested_name,
-              false);
+    const FrameHostMsg_DownloadUrl_Params& params) {
+  DownloadUrl(params.render_view_id, params.render_frame_id,
+              params.service_worker_provider_id, params.url, params.referrer,
+              params.suggested_name, false);
 }
 
 void RenderFrameMessageFilter::OnSaveImageFromDataURL(
@@ -362,8 +361,8 @@ void RenderFrameMessageFilter::OnSaveImageFromDataURL(
   if (!data_url.is_valid() || !data_url.SchemeIs(url::kDataScheme))
     return;
 
-  DownloadUrl(render_view_id, render_frame_id, data_url, Referrer(),
-              base::string16(), true);
+  DownloadUrl(render_view_id, render_frame_id, -1 /* TODO(horo)*/, data_url,
+              Referrer(), base::string16(), true);
 }
 
 void RenderFrameMessageFilter::OnAre3DAPIsBlocked(int render_frame_id,