[ios] EarlGrey tests for HTTP Authentication.

ios/chrome/browser/ui/toolbar/toolbar_egtest.mm

 // 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.
 
 #import <EarlGrey/EarlGrey.h>
 #import <XCTest/XCTest.h>
 
 #include "base/ios/ios_util.h"
 #include "components/strings/grit/components_strings.h"
 #import "ios/chrome/browser/ui/commands/generic_chrome_command.h"
@@ skipping 107 matching lines @@
 
   const GURL URL = web::test::HttpServer::MakeUrl("http://origin");
 
   [ChromeEarlGrey loadURL:URL];
 
   [[EarlGrey selectElementWithMatcher:chrome_test_util::omnibox()]
       assertWithMatcher:chrome_test_util::omniboxText(URL.GetContent())];
   [[EarlGrey selectElementWithMatcher:chrome_test_util::omnibox()]
       performAction:grey_typeText(@"foo")];
 
-  id<GREYMatcher> CancelButton =
-      grey_allOf(chrome_test_util::buttonWithAccessibilityLabelId(IDS_CANCEL),
+  id<GREYMatcher> cancelButton =
+      grey_allOf(chrome_test_util::cancelButton(),
                  grey_not(grey_accessibilityID(@"Typing Shield")), nil);
-  [[EarlGrey selectElementWithMatcher:CancelButton] performAction:grey_tap()];
+  [[EarlGrey selectElementWithMatcher:cancelButton] performAction:grey_tap()];
 
   [[EarlGrey selectElementWithMatcher:chrome_test_util::omnibox()]
       assertWithMatcher:chrome_test_util::omniboxText(URL.GetContent())];
 }
 
 // Tests whether input mode in an omnibox can be canceled via "hide keyboard"
 // button and asserts it doesn't commit the omnibox contents if the input is
 // canceled.
 - (void)testToolbarOmniboxHideKeyboard {
   // TODO(crbug.com/642559): Enable the test for iPad when typing bug is fixed.
@@ skipping 294 matching lines @@
 
     [[EarlGrey selectElementWithMatcher:grey_accessibilityLabel(clearText)]
         performAction:grey_tap()];
     [[EarlGrey selectElementWithMatcher:chrome_test_util::omnibox()]
         assertWithMatcher:chrome_test_util::omniboxText("")];
 
     SelectNewTabPagePanel(NewTabPage::kMostVisitedPanel);
   }
 }
 @end