1 files changed, 52 insertions, 0 deletions
diff --git a/chrome/browser/ui/webui/ntp/ntp_resource_cache.h b/chrome/browser/ui/webui/ntp/ntp_resource_cache.h
new file mode 100644
index 0000000..1029b43
--- /dev/null
+++ b/chrome/browser/ui/webui/ntp/ntp_resource_cache.h
@@ -0,0 +1,52 @@
+// Copyright (c) 2011 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.
+
+#ifndef CHROME_BROWSER_UI_WEBUI_NTP_NTP_RESOURCE_CACHE_H_
+#define CHROME_BROWSER_UI_WEBUI_NTP_NTP_RESOURCE_CACHE_H_
+#pragma once
+
+#include "base/basictypes.h"
+#include "base/memory/ref_counted.h"
+#include "chrome/browser/prefs/pref_change_registrar.h"
+#include "content/common/notification_observer.h"
+#include "content/common/notification_registrar.h"
+
+class Profile;
+class RefCountedBytes;
+
+// This class keeps a cache of NTP resources (HTML and CSS) so we don't have to
+// regenerate them all the time.
+class NTPResourceCache : public NotificationObserver {
+ public:
+  explicit NTPResourceCache(Profile* profile);
+  virtual ~NTPResourceCache();
+
+  RefCountedBytes* GetNewTabHTML(bool is_incognito);
+  RefCountedBytes* GetNewTabCSS(bool is_incognito);
+
+  // NotificationObserver interface.
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details);
+
+ private:
+  Profile* profile_;
+
+  void CreateNewTabIncognitoHTML();
+  scoped_refptr<RefCountedBytes> new_tab_incognito_html_;
+  void CreateNewTabHTML();
+  scoped_refptr<RefCountedBytes> new_tab_html_;
+
+  void CreateNewTabIncognitoCSS();
+  scoped_refptr<RefCountedBytes> new_tab_incognito_css_;
+  void CreateNewTabCSS();
+  scoped_refptr<RefCountedBytes> new_tab_css_;
+
+  NotificationRegistrar registrar_;
+  PrefChangeRegistrar pref_change_registrar_;
+
+  DISALLOW_COPY_AND_ASSIGN(NTPResourceCache);
+};
+
+#endif  // CHROME_BROWSER_UI_WEBUI_NTP_NTP_RESOURCE_CACHE_H_