Restore sessionStorage when chrome restarts.

content/browser/in_process_webkit/dom_storage_message_filter.cc

Index: content/browser/in_process_webkit/dom_storage_message_filter.cc
diff --git a/content/browser/in_process_webkit/dom_storage_message_filter.cc b/content/browser/in_process_webkit/dom_storage_message_filter.cc
index 52a3c0e7dcad98e8b8c50143b90c8372eb596cfb..fff8fab40774747fa7dd9b72d90c550b648027a1 100644
--- a/content/browser/in_process_webkit/dom_storage_message_filter.cc
+++ b/content/browser/in_process_webkit/dom_storage_message_filter.cc
@@ -10,6 +10,8 @@
 #include "content/browser/in_process_webkit/dom_storage_context.h"
 #include "content/browser/in_process_webkit/dom_storage_namespace.h"
 #include "content/common/dom_storage_messages.h"
+#include "content/public/browser/notification_service.h"
+#include "content/public/browser/notification_types.h"
 #include "content/public/browser/browser_thread.h"
 #include "googleurl/src/gurl.h"
 
@@ -109,16 +111,38 @@ void DOMStorageMessageFilter::OverrideThreadForMessage(
     *thread = BrowserThread::WEBKIT;
 }
 
+void DOMStorageMessageFilter::NotifyOnUIThread(
+    int64 namespace_id,
+    const FilePath& session_storage_directory) {
+  DOMStorageNamespaceCreatedDetails details;
+  details.id = namespace_id;
+  details.session_storage_directory = session_storage_directory;
+  content::NotificationService::current()->Notify(
+      content::NOTIFICATION_DOM_STORAGE_NAMESPACE_CREATED,
+      content::Source<DOMStorageMessageFilter>(this),
+      content::Details<DOMStorageNamespaceCreatedDetails>(&details));
+}
+
 void DOMStorageMessageFilter::OnStorageAreaId(int64 namespace_id,
                                               const string16& origin,
                                               int64* storage_area_id) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::WEBKIT));
 
   DOMStorageNamespace* storage_namespace =
-      Context()->GetStorageNamespace(namespace_id, true);
+      Context()->GetStorageNamespace(namespace_id, false);
   if (!storage_namespace) {
-    *storage_area_id = DOMStorageContext::kInvalidStorageId;
-    return;
+    storage_namespace =
+        Context()->GetStorageNamespace(namespace_id, true);
+    if (!storage_namespace) {
+      *storage_area_id = DOMStorageContext::kInvalidStorageId;
+      return;
+    }
+
+    BrowserThread::PostTask(
+        BrowserThread::UI, FROM_HERE,
+        base::Bind(&DOMStorageMessageFilter::NotifyOnUIThread, this,

[michaeln, 2011/12/13 20:40:03]

Is the intent to only send this notification for sessionStorage namespaces or
for localStorage namespaces too? Looks like its doing the latter, but the last
param makes it seem like the intent is the former.

[marja, 2012/01/11 15:17:53]

Fixed this.

+                   namespace_id,
+                   storage_namespace->session_storage_directory()));
   }
   DOMStorageArea* storage_area = storage_namespace->GetStorageArea(origin);
   *storage_area_id = storage_area->id();