Introduce url_list to the Response scheme of CacheStorage.

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 b027093afb3d66e288186082038a87ae11750e35..4911741800ca5864183ef26847fb6e34255af713 100644
--- a/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp
+++ b/third_party/WebKit/Source/core/loader/DocumentThreadableLoader.cpp
@@ -536,6 +536,7 @@ bool DocumentThreadableLoader::redirectReceived(
   // Allow same origin requests to continue after allowing clients to audit the
   // redirect.
   if (isAllowedRedirect(request.url())) {
+    m_client->didReceiveRedirectTo(request.url());
     if (m_client->isDocumentThreadableLoaderClient()) {
       return static_cast<DocumentThreadableLoaderClient*>(m_client)
           ->willFollowRedirect(request, redirectResponse);
@@ -597,6 +598,8 @@ bool DocumentThreadableLoader::redirectReceived(
     return false;
   }
 
+  m_client->didReceiveRedirectTo(request.url());
+
   // FIXME: consider combining this with CORS redirect handling performed by
   // CrossOriginAccessControl::handleRedirect().
   clearResource();