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

content/browser/service_worker/service_worker_context_request_handler.cc

Index: content/browser/service_worker/service_worker_context_request_handler.cc
diff --git a/content/browser/service_worker/service_worker_context_request_handler.cc b/content/browser/service_worker/service_worker_context_request_handler.cc
index cd6c200f718c6f3c864fec626548ab933a8648d1..cd4ce5a05d03a465ebe766a6f9f0f47c5306c042 100644
--- a/content/browser/service_worker/service_worker_context_request_handler.cc
+++ b/content/browser/service_worker/service_worker_context_request_handler.cc
@@ -4,9 +4,12 @@
 
 #include "content/browser/service_worker/service_worker_context_request_handler.h"
 
+#include "content/browser/service_worker/service_worker_context_core.h"
 #include "content/browser/service_worker/service_worker_provider_host.h"
 #include "content/browser/service_worker/service_worker_read_from_cache_job.h"
+#include "content/browser/service_worker/service_worker_storage.h"
 #include "content/browser/service_worker/service_worker_version.h"
+#include "content/browser/service_worker/service_worker_write_to_cache_job.h"
 #include "net/url_request/url_request.h"
 
 namespace content {
@@ -26,7 +29,10 @@ ServiceWorkerContextRequestHandler::~ServiceWorkerContextRequestHandler() {
 net::URLRequestJob* ServiceWorkerContextRequestHandler::MaybeCreateJob(
     net::URLRequest* request,
     net::NetworkDelegate* network_delegate) {
-  if (!provider_host_ || !version_)
+  if (!provider_host_ || !version_ || !context_)
+    return NULL;
+
+  if (request->url_chain().size() > 1)
     return NULL;
 
   // We only use the script cache for main script loading and
@@ -40,8 +46,12 @@ net::URLRequestJob* ServiceWorkerContextRequestHandler::MaybeCreateJob(
   }
 
   if (ShouldAddToScriptCache(request->url())) {
-    return NULL;
-    // TODO(michaeln): return new ServiceWorkerWriteToCacheJob();
+    int64 response_id = context_->storage()->NewResourceId();
+    if (response_id == kInvalidServiceWorkerResponseId)
+      return NULL;
+    version_->AddToScriptCache(request->url(), response_id);
+    return new ServiceWorkerWriteToCacheJob(
+        request, network_delegate, context_, version_, response_id);
   }
 
   int64 response_id = kInvalidServiceWorkerResponseId;
@@ -56,9 +66,9 @@ net::URLRequestJob* ServiceWorkerContextRequestHandler::MaybeCreateJob(
 
 bool ServiceWorkerContextRequestHandler::ShouldAddToScriptCache(
     const GURL& url) {
-  // TODO(michaeln): Ensure the transition to INSTALLING can't
-  // happen prior to the initial eval completion.
-  if (version_->status() != ServiceWorkerVersion::NEW)
+  // TODO(michaeln): Stop caching imports after the initial eval.
+  if (version_->status() != ServiceWorkerVersion::NEW &&
+      version_->status() != ServiceWorkerVersion::INSTALLING)
     return false;
   return version_->LookupInScriptCache(url) == kInvalidServiceWorkerResponseId;
 }