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

content/browser/service_worker/service_worker_request_handler.cc

Index: content/browser/service_worker/service_worker_request_handler.cc
diff --git a/content/browser/service_worker/service_worker_request_handler.cc b/content/browser/service_worker/service_worker_request_handler.cc
index 4fbd76e78ea4ea37b4121547dcaed7dc927efe1b..a1a05f39c74ac61ace3ba2b839ae8d42f1ebc6d0 100644
--- a/content/browser/service_worker/service_worker_request_handler.cc
+++ b/content/browser/service_worker/service_worker_request_handler.cc
@@ -38,6 +38,20 @@ class ServiceWorkerRequestInterceptor
   DISALLOW_COPY_AND_ASSIGN(ServiceWorkerRequestInterceptor);
 };
 
+bool IsSchemeSupported(const GURL& url) {
+  // TODO(michaeln): https only
+  return url.SchemeIs("http") || url.SchemeIs("https");
+}
+
+bool IsMethodSupported(const std::string& method) {
+  return (method == "GET") || (method == "HEAD");
+}
+
+bool IsSchemeAndMethodSupported(const net::URLRequest* request) {
+  return IsSchemeSupported(request->url()) &&
+         IsMethodSupported(request->method());
+}
+
 }  // namespace
 
 void ServiceWorkerRequestHandler::InitializeHandler(
@@ -46,8 +60,10 @@ void ServiceWorkerRequestHandler::InitializeHandler(
     int process_id,
     int provider_id,
     ResourceType::Type resource_type) {
-  if (!ServiceWorkerUtils::IsFeatureEnabled())
+  if (!ServiceWorkerUtils::IsFeatureEnabled() ||
+      !IsSchemeAndMethodSupported(request)) {
     return;
+  }
 
   if (!context_wrapper || !context_wrapper->context() ||
       provider_id == kInvalidServiceWorkerProviderId) {