Fix flaky NewTabPageTestCase.testOmnibox

ios/chrome/browser/ui/ntp/google_landing_controller.mm

 // Copyright 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.
 
 #import "ios/chrome/browser/ui/ntp/google_landing_controller.h"
 
 #include <algorithm>
 
 #include "base/i18n/case_conversion.h"
 #import "base/ios/weak_nsobject.h"
@@ skipping 1656 matching lines @@
 }
 
 - (void)addBlacklistedURL:(const GURL&)url {
   _most_visited_sites->AddOrRemoveBlacklistedUrl(url, true);
 }
 
 - (void)removeBlacklistedURL:(const GURL&)url {
   _most_visited_sites->AddOrRemoveBlacklistedUrl(url, false);
 }
 
+#pragma mark - GoogleLandingController (ExposedForTesting) methods.
+
 - (BOOL)scrolledToTop {
   return _scrolledToTop;
 }
 
+- (BOOL)animateHeader {
+  return _animateHeader;
+}
+
 #pragma mark - OverscrollActionsControllerDelegate
 
 - (void)overscrollActionsController:(OverscrollActionsController*)controller
                    didTriggerAction:(ios_internal::OverscrollAction)action {
   switch (action) {
     case ios_internal::OverscrollAction::NEW_TAB: {
       base::scoped_nsobject<GenericChromeCommand> command(
           [[GenericChromeCommand alloc] initWithTag:IDC_NEW_TAB]);
       [[self view] chromeExecuteCommand:command];
     } break;
@@ skipping 44 matching lines @@
   if (!view) {
     return nil;
   }
   if ([view isKindOfClass:aClass]) {
     return view;
   }
   return [self nearestAncestorOfView:[view superview] withClass:aClass];
 }
 
 @end