Make settings_egtest.mm work in landscape on small phones.

ios/chrome/browser/metrics/tab_usage_recorder_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.
 
 #include "base/mac/bind_objc_block.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #import "base/test/ios/wait_util.h"
@@ skipping 23 matching lines @@
 #include "ios/web/public/test/response_providers/delayed_response_provider.h"
 #include "ios/web/public/test/response_providers/html_response_provider.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 #include "url/gurl.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 using chrome_test_util::OpenLinkInNewTabButton;
+using chrome_test_util::SettingsMenuButton;
 using tab_usage_recorder_test_util::OpenNewIncognitoTabUsingUIAndEvictMainTabs;
 using tab_usage_recorder_test_util::SwitchToNormalMode;
 
 namespace {
 
 const char kTestUrl1[] =
     "http://ios/testing/data/http_server_files/memory_usage.html";
 const char kURL1FirstWord[] = "Page";
 const char kTestUrl2[] =
     "http://ios/testing/data/http_server_files/fullscreen.html";
@@ skipping 87 matching lines @@
       onElementWithMatcher:grey_accessibilityID(kSettingsCollectionViewId)]
       performAction:grey_tap()];
 }
 
 // Open the settings menu. Wait for the settings menu to appear.
 void OpenSettingsMenuUnsynced() {
   id<GREYMatcher> tool_menu_matcher =
       grey_accessibilityID(kToolbarToolsMenuButtonIdentifier);
   WaitAndTap(tool_menu_matcher, @"Tool menu");
 
-  id<GREYMatcher> settings_button_matcher =
-      grey_accessibilityID(kToolsMenuSettingsId);
-
-  WaitAndTap(settings_button_matcher, @"Settings menu");
+  WaitAndTap(SettingsMenuButton(), @"Settings menu");
   Wait(grey_accessibilityID(kSettingsCollectionViewId), @"Setting view");
 }
 
 // Select the tab with title |title| using UI (tab strip on iPad, stack view on
 // iPhone).
 void SelectTabUsingUI(NSString* title) {
   if (IsCompact()) {
     WaitAndTap(chrome_test_util::ShowTabsButton(), @"Tab switcher");
   }
   WaitAndTap(grey_text(title),
@@ skipping 670 matching lines @@
     [[GREYUIThreadExecutor sharedInstance] drainUntilIdle];
   }
   // The deleted tabs are purged during foregrounding and backgrounding.
   chrome_test_util::SimulateTabsBackgrounding();
   // Make sure |evicted_tabs_| purged the deleted tabs.
   int evicted = chrome_test_util::GetEvictedMainTabCount();
   GREYAssertEqual(evicted, 0, @"Check number of evicted tabs");
 }
 
 @end