Extension SW: Add tests that serve web_accessible_resources from a SW.

third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp

Index: third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp
diff --git a/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp b/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp
index 92838086ce5e478ebb0971827cc9e4426e8bacfe..d5ebcf85b7df4fdaa7e75f077f3d560afbc219bd 100644
--- a/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp
+++ b/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp
@@ -192,9 +192,9 @@ DocumentThreadableLoader::DocumentThreadableLoader(Document& document, Threadabl
     // return a opaque response which is from the other origin site and the
     // script in the page can read the content.
     //
-    // We assume that ServiceWorker is skipped for sync requests and non-HTTP
-    // familiy requests by content/ code.
-    if (m_async && !request.skipServiceWorker() && request.url().protocolIsInHTTPFamily() && document.fetcher()->isControlledByServiceWorker()) {
+    // We assume that ServiceWorker is skipped for sync requests and unsupported
+    // protocol requests by content/ code.
+    if (m_async && !request.skipServiceWorker() && SchemeRegistry::shouldTreatURLSchemeAsAllowingServiceWorkers(request.url().protocol()) && document.fetcher()->isControlledByServiceWorker()) {
         ResourceRequest newRequest(request);
         // FetchRequestMode should be set by the caller. But the expected value
         // of FetchRequestMode is not speced yet except for XHR. So we set here.