GitLab

Extension/app custom menu range should be
  [IDC_EXTENSIONS_CONTEXT_CUSTOM_FIRST,
   IDC_EXTENSIONS_CONTEXT_CUSTOM_LAST).

Bug: 837290
Test: Bring up context menu of "Files" and select "New Window".
Change-Id: Ifac2c6b23cde52618fcd0df27ccf11d5e4897547
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1615385
Commit-Queue: Alex Newcomer <newcomer@chromium.org>
Auto-Submit: Xiyuan Xia <xiyuan@chromium.org>
Reviewed-by: Alex Newcomer <newcomer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#660646}