Store the service worker script and its imports on first load... kinda

content/browser/service_worker/service_worker_disk_cache.h

Index: content/browser/service_worker/service_worker_disk_cache.h
diff --git a/content/browser/service_worker/service_worker_disk_cache.h b/content/browser/service_worker/service_worker_disk_cache.h
index c0446c929b439a2dec82e0fd915a4e329873d971..7448b8d538ffda4c1b6ced6df15e5a6b130bf179 100644
--- a/content/browser/service_worker/service_worker_disk_cache.h
+++ b/content/browser/service_worker/service_worker_disk_cache.h
@@ -42,6 +42,10 @@ class ServiceWorkerResponseWriter
 
 struct HttpResponseInfoIOBuffer
     : public appcache::HttpResponseInfoIOBuffer {
+ public:
+  HttpResponseInfoIOBuffer() : appcache::HttpResponseInfoIOBuffer() {}
+  explicit HttpResponseInfoIOBuffer(net::HttpResponseInfo* info)
+    : appcache::HttpResponseInfoIOBuffer(info) {}
  protected:
   virtual ~HttpResponseInfoIOBuffer();
 };