[Hotword] Putting preferences under search for hotword service. Putting behind a flag.

chrome/browser/ui/webui/options/browser_options_handler.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 233 matching lines @@
   // Setup the enabled or disabled state of the cloud print connector
   // management UI.
   void SetupCloudPrintConnectorSection();
 
   // Remove cloud print connector section if cloud print connector management
   //  UI is disabled.
   void RemoveCloudPrintConnectorSection();
 #endif  // defined(OS_CHROMEOS)
 #endif  // defined(ENABLE_FULL_PRINTING)
 
+  // Check if hotword is available. If it is, tell the javascript to show
+  // the hotword section of the settings page.
+  void SendHotwordAvailable();
+
+  // Callback for "requestHotwordAvailable" message.
+  void HandleRequestHotwordAvailable(const base::ListValue* args);
+
 #if defined(OS_CHROMEOS)
   // Opens the wallpaper manager component extension.
   void HandleOpenWallpaperManager(const base::ListValue* args);
 
   // Called when the accessibility checkbox values are changed.
   // |args| will contain the checkbox checked state as a string
   // ("true" or "false").
   void VirtualKeyboardChangeCallback(const base::ListValue* args);
 
   // Called when the user confirmed factory reset. Chrome will
@@ skipping 63 matching lines @@
 
   // Used to get WeakPtr to self for use on the UI thread.
   base::WeakPtrFactory<BrowserOptionsHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserOptionsHandler);
 };
 
 }  // namespace options
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_BROWSER_OPTIONS_HANDLER_H_