Restore sessionStorage when chrome restarts.

chrome/browser/sessions/session_restore.cc

Index: chrome/browser/sessions/session_restore.cc
diff --git a/chrome/browser/sessions/session_restore.cc b/chrome/browser/sessions/session_restore.cc
index 9f8e83b98e83b74f03bcf0ae743d751df36902e3..0c11fc7ae4ea42318c8ef9b6f3ff4277e0ca4a47 100644
--- a/chrome/browser/sessions/session_restore.cc
+++ b/chrome/browser/sessions/session_restore.cc
@@ -29,6 +29,9 @@
 #include "chrome/browser/ui/browser_navigator.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/common/chrome_notification_types.h"
+#include "content/browser/in_process_webkit/dom_storage_namespace.h"
+#include "content/browser/in_process_webkit/session_storage_namespace.h"
+#include "content/browser/in_process_webkit/webkit_context.h"
 #include "content/browser/renderer_host/render_widget_host.h"
 #include "content/browser/renderer_host/render_widget_host_view.h"
 #include "content/public/browser/navigation_controller.h"
@@ -399,6 +402,13 @@ void TabLoader::HandleTabClosedOrLoaded(NavigationController* tab) {
   }
 }
 
+void RestoreSessionStorage(WebKitContext* webkit_context,
+                           int64 namespace_id,
+                           const FilePath& session_storage_directory) {
+  webkit_context->dom_storage_context()->RecreateSessionStorageNamespace(
+      namespace_id, session_storage_directory);
+}
+
 // SessionRestoreImpl ---------------------------------------------------------
 
 // SessionRestoreImpl is responsible for fetching the set of tabs to create
@@ -732,6 +742,16 @@ class SessionRestoreImpl : public content::NotificationObserver {
                                 tab.pinned,
                                 true,
                                 NULL);
+    int64 namespace_id =
+        web_contents->GetController().GetSessionStorageNamespace()->id();
+
+    content::BrowserThread::PostTask(
+        content::BrowserThread::WEBKIT_DEPRECATED, FROM_HERE,
+        base::Bind(&RestoreSessionStorage,
+                   make_scoped_refptr(
+                       web_contents->GetBrowserContext()->GetWebKitContext()),
+                   namespace_id, tab.session_storage_directory));
+
     if (schedule_load)
       tab_loader_->ScheduleLoad(&web_contents->GetController());
   }