[MD settings] appearance theme and wallpaper

chrome/browser/ui/webui/settings/appearance_handler.h

 // Copyright (c) 2015 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_SETTINGS_APPEARANCE_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_SETTINGS_APPEARANCE_HANDLER_H_
 
 #include "base/macros.h"
 #include "chrome/browser/ui/webui/settings/settings_page_ui_handler.h"
 #include "content/public/browser/notification_observer.h"
@@ skipping 24 matching lines @@
  private:
   // content::NotificationObserver implementation.
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // Whether the theme can be reset.
   bool ResetThemeEnabled() const;
 
   // Resets the UI theme of the browser to the default theme.
-  void ResetTheme(const base::ListValue*);
+  void HandleResetTheme(const base::ListValue* args);
 
   // Sends the enabled state of the reset-theme control to the JS.
-  void GetResetThemeEnabled(const base::ListValue* args);
+  void HandleGetResetThemeEnabled(const base::ListValue* args);
+
+#if defined(OS_CHROMEOS)
+  // Open the wallpaper manager app.
+  void HandleOpenWallpaperManager(const base::ListValue* args);
+#endif
 
   Profile* profile_;  // Weak pointer.
 
   // Used to register for relevant notifications.
   content::NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(AppearanceHandler);
 };
 
 }  // namespace settings
 
 #endif  // CHROME_BROWSER_UI_WEBUI_SETTINGS_APPEARANCE_HANDLER_H_