am a0b0e2a2: (-s ours) Do not merge When opening a new tab from the context menu, treat the new tab as a child of the current tab. This change was cherry-picked from master.

Merge commit 'a0b0e2a2cd78ae78ec50eab2e532d0102facc52d'

* commit 'a0b0e2a2cd78ae78ec50eab2e532d0102facc52d':
  Do not merge