MD Settings: Use FireWebUIListener() helper wherever possible.

chrome/browser/ui/webui/settings/settings_import_data_handler.cc

 // Copyright 2016 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.
 
 #include "chrome/browser/ui/webui/settings/settings_import_data_handler.h"
 
 #include <stddef.h>
 
 #include <string>
 #include <utility>
@@ skipping 75 matching lines @@
     uint16_t imported_items) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   if (!imported_items)
     return;
 
   // If another import is already ongoing, let it finish silently.
   if (importer_host_)
     importer_host_->set_observer(NULL);
 
-  CallJavascriptFunction("cr.webUIListenerCallback",
-                         base::Value("import-data-status-changed"),
-                         base::Value(kImportStatusInProgress));
+  FireWebUIListener("import-data-status-changed",
+                    base::Value(kImportStatusInProgress));
   import_did_succeed_ = false;
 
   importer_host_ = new ExternalProcessImporterHost();
   importer_host_->set_observer(this);
   Profile* profile = Profile::FromWebUI(web_ui());
   importer_host_->StartImportSettings(source_profile, profile,
                                       imported_items,
                                       new ProfileWriter(profile));
 
   importer::LogImporterUseToMetrics("ImportDataHandler",
@@ skipping 138 matching lines @@
                                   base::string16(),
                                   base::FilePath(),
                                   &file_type_info,
                                   0,
                                   base::FilePath::StringType(),
                                   browser->window()->GetNativeWindow(),
                                   NULL);
 }
 
 }  // namespace settings