Disable PasswordsSettingsTestCase.testCopyPasswordToast on iOS.

ios/chrome/browser/ui/settings/passwords_settings_egtest.mm

 // Copyright 2017 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 "base/callback.h"
 #include "base/mac/foundation_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/time/time.h"
 #include "components/autofill/core/common/password_form.h"
@@ skipping 321 matching lines @@
   chrome_test_util::VerifyAccessibilityForCurrentScreen();
   [self tapBackArrow];
 
   [self tapBackArrow];
   [self tapDone];
   [self clearPasswordStore];
 }
 
 // Checks that attempts to copy a password provide appropriate feedback,
 // both when reauthentication succeeds and when it fails.
-- (void)testCopyPasswordToast {
+// TODO(crbug.com/718043): Re-enable test.
+- (void)DISABLED_testCopyPasswordToast {
   [self scopedEnablePasswordManagementAndViewingUI];
 
   // Saving a form is needed for using the "password details" view.
   [self saveExamplePasswordForm];
 
   [self openPasswordSettings];
 
   [[EarlGrey selectElementWithMatcher:Entry(@"https://example.com, user")]
       performAction:grey_tap()];
 
@@ skipping 86 matching lines @@
   [[EarlGrey selectElementWithMatcher:grey_accessibilityLabel(snackbarLabel)]
       assertWithMatcher:grey_notNil()];
 
   [self tapBackArrow];
   [self tapBackArrow];
   [self tapDone];
   [self clearPasswordStore];
 }
 
 @end