Cleanup Tool WebUI: Add functionality to the Scan button

chrome/browser/component_updater/sw_reporter_installer_win.cc

Index: chrome/browser/component_updater/sw_reporter_installer_win.cc
diff --git a/chrome/browser/component_updater/sw_reporter_installer_win.cc b/chrome/browser/component_updater/sw_reporter_installer_win.cc
index bca424f8beed4efd637d5a9231183f63b5681327..82287ee1a28c779ff176746aa80999ba7d05f0ad 100644
--- a/chrome/browser/component_updater/sw_reporter_installer_win.cc
+++ b/chrome/browser/component_updater/sw_reporter_installer_win.cc
@@ -501,4 +501,13 @@ void RegisterProfilePrefsForSwReporter(
   registry->RegisterStringPref(prefs::kSwReporterPromptSeed, "");
 }
 
+void RegisterUserInitiatedSwReporterScan(base::Closure callback) {
+  // Fetch the latest version of the Cleanup component and run it,
+  // bypassing the usual scheduling logic. Once the scan is done, report
+  // whether the scan was successful and the names of the Unwanted Software that
+  // can be removed by the Cleanup tool.
+  // TODO(proberge): Implement me.
+  callback.Run();
+}
+
 }  // namespace component_updater