Use extensions::ResultCatcher; delete ExtensionApiTest::ResultCatcher.

chrome/browser/extensions/api/omnibox/omnibox_api_interactive_test.cc

 // Copyright (c) 2013 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/autocomplete/chrome_autocomplete_scheme_classifier.h"
 #include "chrome/browser/extensions/api/omnibox/omnibox_api_testbase.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "components/metrics/proto/omnibox_event.pb.h"
-
+#include "extensions/test/result_catcher.h"
 
 // Tests that the autocomplete popup doesn't reopen after accepting input for
 // a given query.
 // http://crbug.com/88552
 IN_PROC_BROWSER_TEST_F(OmniboxApiTest, PopupStaysClosed) {
   ASSERT_TRUE(RunExtensionTest("omnibox")) << message_;
 
   // The results depend on the TemplateURLService being loaded. Make sure it is
   // loaded so that the autocomplete results are consistent.
   Profile* profile = browser()->profile();
@@ skipping 10 matching lines @@
   omnibox_view->OnBeforePossibleChange();
   omnibox_view->SetUserText(base::ASCIIToUTF16("keyword comman"));
   omnibox_view->OnAfterPossibleChange();
   WaitForAutocompleteDone(autocomplete_controller);
   EXPECT_TRUE(autocomplete_controller->done());
   EXPECT_TRUE(popup_model->IsOpen());
 
   // Quickly type another query and accept it before getting suggestions back
   // for the query. The popup will close after accepting input - ensure that it
   // does not reopen when the extension returns its suggestions.
-  ResultCatcher catcher;
+  extensions::ResultCatcher catcher;
 
   // TODO: Rather than send this second request by talking to the controller
   // directly, figure out how to send it via the proper calls to
   // location_bar or location_bar->().
   autocomplete_controller->Start(AutocompleteInput(
       base::ASCIIToUTF16("keyword command"), base::string16::npos,
       base::string16(), GURL(), metrics::OmniboxEventProto::NTP, true, false,
       true, true, ChromeAutocompleteSchemeClassifier(profile)));
   location_bar->AcceptInput();
   WaitForAutocompleteDone(autocomplete_controller);
   EXPECT_TRUE(autocomplete_controller->done());
   // This checks that the keyword provider (via javascript)
   // gets told to navigate to the string "command".
   EXPECT_TRUE(catcher.GetNextResult()) << catcher.message();
   EXPECT_FALSE(popup_model->IsOpen());
 }