Manifest handler for all keys background-related.

chrome/common/extensions/api/themes/theme_handler.h

 // Copyright (c) 2013 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_COMMON_EXTENSIONS_API_THEMES_THEME_HANDLER_H_
 #define CHROME_COMMON_EXTENSIONS_API_THEMES_THEME_HANDLER_H_
 
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/manifest_handler.h"
 
@@ skipping 30 matching lines @@
 
 // Parses the "theme" manifest key.
 class ThemeHandler : public ManifestHandler {
  public:
   ThemeHandler();
   virtual ~ThemeHandler();
 
   virtual bool Parse(Extension* extension, string16* error) OVERRIDE;
 
  private:
+  virtual const std::vector<std::string> Keys() const OVERRIDE;
+
   DISALLOW_COPY_AND_ASSIGN(ThemeHandler);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_API_THEMES_THEME_HANDLER_H_