The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/870ec553a786c0f19d6785a4333fa7a6dc2885c0

commit 870ec553a786c0f19d6785a4333fa7a6dc2885c0
Author: calamity <calamity@chromium.org>
Date: Mon May 29 05:14:27 2017

[MD Bookmarks] Fix singleton tab behavior.

This CL fixes an issue where MD Bookmarks would not focus an existing
tab when the bookmark manager was launched a second time. This was
happening because the query of the URL was being used in the deduping
process, so calling a function which sets IGNORE_AND_NAVIGATE fixes this.

It also fixes an issue where repeatedly pressing the bookmark manager
shortcut would repeatedly refresh the page because the specified URL
is chrome://bookmarks but the redirected URL is chrome://bookmarks/?id=1.

BUG= 725761 

Review-Url: https://codereview.chromium.org/2899223002
Cr-Commit-Position: refs/heads/master@{#475290}

[modify] https://crrev.com/870ec553a786c0f19d6785a4333fa7a6dc2885c0/chrome/browser/app_controller_mac.mm
[modify] https://crrev.com/870ec553a786c0f19d6785a4333fa7a6dc2885c0/chrome/browser/ui/bookmarks/bookmark_context_menu_controller.cc
[modify] https://crrev.com/870ec553a786c0f19d6785a4333fa7a6dc2885c0/chrome/browser/ui/chrome_pages.cc
[modify] https://crrev.com/870ec553a786c0f19d6785a4333fa7a6dc2885c0/tools/metrics/actions/actions.xml