Cleanup Tool WebUI: Add functionality to the Scan button

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

Index: chrome/browser/ui/webui/cleanup_tool/cleanup_action_handler.h
diff --git a/chrome/browser/ui/webui/cleanup_tool/cleanup_action_handler.h b/chrome/browser/ui/webui/cleanup_tool/cleanup_action_handler.h
index 87ee24a3f401c0a0845a488fac7e22ad44326361..811155a18d406d901f13fccfcb67b2433e957de0 100644
--- a/chrome/browser/ui/webui/cleanup_tool/cleanup_action_handler.h
+++ b/chrome/browser/ui/webui/cleanup_tool/cleanup_action_handler.h
@@ -7,6 +7,7 @@
 
 #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.
@@ -21,6 +22,9 @@ class CleanupActionHandler : public content::WebUIMessageHandler {
  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);
 };