[WIP not ready for review] ServiceWorker Download support.

content/browser/frame_host/render_frame_message_filter.h

Index: content/browser/frame_host/render_frame_message_filter.h
diff --git a/content/browser/frame_host/render_frame_message_filter.h b/content/browser/frame_host/render_frame_message_filter.h
index fa7fe99e1a36f99017c8eed89e994fb7a2801531..50e715bf160803423026e1fe128a8442b9a5f90c 100644
--- a/content/browser/frame_host/render_frame_message_filter.h
+++ b/content/browser/frame_host/render_frame_message_filter.h
@@ -22,6 +22,7 @@
 #endif
 
 struct FrameHostMsg_CreateChildFrame_Params;
+struct FrameHostMsg_DownloadUrl_Params;
 class GURL;
 
 namespace net {
@@ -68,6 +69,7 @@ class CONTENT_EXPORT RenderFrameMessageFilter
   // This method will be overridden by TestSaveImageFromDataURL class for test.
   virtual void 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,
@@ -96,11 +98,7 @@ class CONTENT_EXPORT RenderFrameMessageFilter
                              const GetCookiesCallback& callback,
                              const net::CookieList& cookie_list);
 
-  void OnDownloadUrl(int render_view_id,
-                     int render_frame_id,
-                     const GURL& url,
-                     const Referrer& referrer,
-                     const base::string16& suggested_name);
+  void OnDownloadUrl(const FrameHostMsg_DownloadUrl_Params& params);
   void OnSaveImageFromDataURL(int render_view_id,
                               int render_frame_id,
                               const std::string& url_str);