The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/17581175d5df6d58e62d9e3e7b699df99dca1b19

commit 17581175d5df6d58e62d9e3e7b699df99dca1b19
Author: baxley <baxley@chromium.org>
Date: Mon Mar 06 21:14:27 2017

Use shared matchers for common elements.

Add new matcher for OpenLinkInNewTabMenuItem(), and make all tests
use this. Also remove tests that have methods to match the stack
view button, and use the existing shared matcher ShowOpenTabs().

BUG= 698774 ,638674

Review-Url: https://codereview.chromium.org/2732973003
Cr-Commit-Position: refs/heads/master@{#454957}

[modify] https://crrev.com/17581175d5df6d58e62d9e3e7b699df99dca1b19/ios/chrome/browser/context_menu/context_menu_egtest.mm
[modify] https://crrev.com/17581175d5df6d58e62d9e3e7b699df99dca1b19/ios/chrome/browser/metrics/tab_usage_recorder_egtest.mm
[modify] https://crrev.com/17581175d5df6d58e62d9e3e7b699df99dca1b19/ios/chrome/browser/ui/history/history_ui_egtest.mm
[modify] https://crrev.com/17581175d5df6d58e62d9e3e7b699df99dca1b19/ios/chrome/browser/ui/ntp/new_tab_page_egtest.mm
[modify] https://crrev.com/17581175d5df6d58e62d9e3e7b699df99dca1b19/ios/chrome/test/earl_grey/chrome_matchers.h
[modify] https://crrev.com/17581175d5df6d58e62d9e3e7b699df99dca1b19/ios/chrome/test/earl_grey/chrome_matchers.mm

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/cc17746adff54984afff480136733114c6b3704b

commit cc17746adff54984afff480136733114c6b3704b
Author: baxley <baxley@chromium.org>
Date: Wed Mar 08 19:52:49 2017

Rename matcher OpenLinkInNewTabMenuItem as OpenLinkInNewTabButton.

All of our other matchers like this end in "Button", so this makes
it consistent. If we want to distinguish menu items, it should be
done everywhere.

BUG= 698774 

Review-Url: https://codereview.chromium.org/2739833003
Cr-Commit-Position: refs/heads/master@{#455520}

[modify] https://crrev.com/cc17746adff54984afff480136733114c6b3704b/ios/chrome/browser/context_menu/context_menu_egtest.mm
[modify] https://crrev.com/cc17746adff54984afff480136733114c6b3704b/ios/chrome/browser/metrics/tab_usage_recorder_egtest.mm
[modify] https://crrev.com/cc17746adff54984afff480136733114c6b3704b/ios/chrome/browser/ui/history/history_ui_egtest.mm
[modify] https://crrev.com/cc17746adff54984afff480136733114c6b3704b/ios/chrome/test/earl_grey/chrome_matchers.h
[modify] https://crrev.com/cc17746adff54984afff480136733114c6b3704b/ios/chrome/test/earl_grey/chrome_matchers.mm