Delete TapButtonWithLabelId from first_run_egtest.mm.

ios/chrome/test/earl_grey/chrome_matchers.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 "ios/chrome/test/earl_grey/chrome_matchers.h"
 
 #import <OCHamcrest/OCHamcrest.h>
 
 #import <WebKit/WebKit.h>
 
@@ skipping 153 matching lines @@
 }
 
 id<GREYMatcher> OpenLinkInNewTabButton() {
   return ButtonWithAccessibilityLabelId(IDS_IOS_CONTENT_CONTEXT_OPENLINKNEWTAB);
 }
 
 id<GREYMatcher> NavigationBarDoneButton() {
   return ButtonWithAccessibilityLabelId(IDS_IOS_NAVIGATION_BAR_DONE_BUTTON);
 }
 
+id<GREYMatcher> AccountConsistencySetupSigninButton() {
+  return ButtonWithAccessibilityLabelId(
+      IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SIGNIN_BUTTON);
+}
+
 }  // namespace chrome_test_util