Persist sessionStorage on disk.

webkit/tools/test_shell/simple_dom_storage_system.cc

Index: webkit/tools/test_shell/simple_dom_storage_system.cc
diff --git a/webkit/tools/test_shell/simple_dom_storage_system.cc b/webkit/tools/test_shell/simple_dom_storage_system.cc
index 36180efc4372fd8d2c1fed233a77b1d1366ea7aa..98335771f5a37e1be9dabdbe4515ab5a185810d8 100644
--- a/webkit/tools/test_shell/simple_dom_storage_system.cc
+++ b/webkit/tools/test_shell/simple_dom_storage_system.cc
@@ -107,7 +107,7 @@ WebStorageNamespace* SimpleDomStorageSystem::NamespaceImpl::copy() {
   int new_id = kInvalidNamespaceId;
   if (Context()) {
     new_id = Context()->AllocateSessionId();
-    Context()->CloneSessionNamespace(namespace_id_, new_id);
+    Context()->CloneSessionNamespace(namespace_id_, new_id, "");
   }
   return new NamespaceImpl(parent_, new_id);
 }
@@ -215,7 +215,7 @@ WebStorageNamespace* SimpleDomStorageSystem::CreateLocalStorageNamespace() {
 
 WebStorageNamespace* SimpleDomStorageSystem::CreateSessionStorageNamespace() {
   int id = context_->AllocateSessionId();
-  context_->CreateSessionNamespace(id);
+  context_->CreateSessionNamespace(id, "");
   return new NamespaceImpl(weak_factory_.GetWeakPtr(), id);
 }