Cleanup Tool WebUI: Add functionality to the Scan button

chrome/browser/ui/webui/cleanup_tool/cleanup_action_handler.h

 // Copyright 2017 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_CLEANUP_TOOL_CLEANUP_ACTION_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CLEANUP_TOOL_CLEANUP_ACTION_HANDLER_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
+#include "components/component_updater/component_updater_service.h"
 #include "content/public/browser/web_ui_message_handler.h"
 
 // The handler for Javascript messages related to the "Chrome Cleanup" view.
 class CleanupActionHandler : public content::WebUIMessageHandler {
  public:
   CleanupActionHandler();
   ~CleanupActionHandler() override;
 
   // WebUIMessageHandler implementation.
   void RegisterMessages() override;
 
  private:
   void HandleRequestLastScanResult(const base::ListValue* args);
 
+  void HandleStartScan(const base::ListValue* args);

[ftirelo, 2017/04/13 17:10:43]

Please add a description to these two methods.

[proberge, 2017/04/13 18:53:03]

The first one doesn't (implicit description: handles the "startScan" call from
Javascript"). Added a description for the second.

+  void ReportScanResults(std::string callback_id);

[ftirelo, 2017/04/13 17:10:43]

const std::string&

[proberge, 2017/04/13 18:53:03]

Done.

+
   DISALLOW_COPY_AND_ASSIGN(CleanupActionHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CLEANUP_TOOL_CLEANUP_ACTION_HANDLER_H_