Try to restore window.opener when opening blocked popups

content/browser/dom_storage/session_storage_namespace_impl.cc

Index: content/browser/dom_storage/session_storage_namespace_impl.cc
diff --git a/content/browser/dom_storage/session_storage_namespace_impl.cc b/content/browser/dom_storage/session_storage_namespace_impl.cc
index fb46a318705e1d74b1b0d2b7ab19ac84df3880f8..aa98519979dfa391b16a9bb2f8340fe49f5b43e5 100644
--- a/content/browser/dom_storage/session_storage_namespace_impl.cc
+++ b/content/browser/dom_storage/session_storage_namespace_impl.cc
@@ -4,6 +4,7 @@
 
 #include "content/browser/dom_storage/session_storage_namespace_impl.h"
 
+#include "base/logging.h"
 #include "content/browser/dom_storage/dom_storage_context_impl.h"
 #include "webkit/browser/dom_storage/dom_storage_session.h"
 
@@ -12,6 +13,16 @@ using dom_storage::DomStorageSession;
 
 namespace content {
 
+// static
+SessionStorageNamespace*
+SessionStorageNamespace::Clone(DOMStorageContext* context,
+                               SessionStorageNamespace* namespace_to_clone) {
+  CHECK(static_cast<SessionStorageNamespaceImpl*>(namespace_to_clone)->
+            IsFromContext(static_cast<DOMStorageContextImpl*>(context)));
+  return new SessionStorageNamespaceImpl(
+      static_cast<DOMStorageContextImpl*>(context), namespace_to_clone->id());
+}
+
 SessionStorageNamespaceImpl::SessionStorageNamespaceImpl(
     DOMStorageContextImpl* context)
     : session_(new DomStorageSession(context->context())) {