Session restore: Store and restore persistent IDs for sessionStorage.

content/browser/dom_storage/dom_storage_context_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/dom_storage/dom_storage_context_impl.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/file_path.h"
 #include "base/message_loop_proxy.h"
+#include "content/browser/dom_storage/session_storage_namespace_impl.h"
 #include "content/public/browser/browser_thread.h"
 #include "webkit/dom_storage/dom_storage_area.h"
 #include "webkit/dom_storage/dom_storage_context.h"
 #include "webkit/dom_storage/dom_storage_task_runner.h"
 
 using content::BrowserThread;
 using content::DOMStorageContext;
 using dom_storage::DomStorageArea;
 using dom_storage::DomStorageContext;
 using dom_storage::DomStorageTaskRunner;
@@ skipping 56 matching lines @@
 }
 
 void DOMStorageContextImpl::DeleteOrigin(const GURL& origin) {
   DCHECK(context_);
   context_->task_runner()->PostShutdownBlockingTask(
       FROM_HERE,
       DomStorageTaskRunner::PRIMARY_SEQUENCE,
       base::Bind(&DomStorageContext::DeleteOrigin, context_, origin));
 }
 
+scoped_refptr<content::SessionStorageNamespace>
+DOMStorageContextImpl::RecreateSessionStorage(
+    const std::string& persistent_id) {
+  return scoped_refptr<content::SessionStorageNamespace>(
+      new SessionStorageNamespaceImpl(this, persistent_id));
+}
+
 void DOMStorageContextImpl::PurgeMemory() {
   DCHECK(context_);
   context_->task_runner()->PostShutdownBlockingTask(
       FROM_HERE,
       DomStorageTaskRunner::PRIMARY_SEQUENCE,
       base::Bind(&DomStorageContext::PurgeMemory, context_));
 }
 
 void DOMStorageContextImpl::SetForceKeepSessionState() {
   DCHECK(context_);
   context_->task_runner()->PostShutdownBlockingTask(
       FROM_HERE,
       DomStorageTaskRunner::PRIMARY_SEQUENCE,
       base::Bind(&DomStorageContext::SetForceKeepSessionState, context_));
 }
 
 void DOMStorageContextImpl::Shutdown() {
   DCHECK(context_);
   context_->task_runner()->PostShutdownBlockingTask(
       FROM_HERE,
       DomStorageTaskRunner::PRIMARY_SEQUENCE,
       base::Bind(&DomStorageContext::Shutdown, context_));
 }