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  Previously the only requirements for whether to display the option was that the feature
  was enabled and the user was not currently on an incognito web page.

  This CL adds the following requirements:
  - The sync type SEND_TAB_TO_SELF must be enabled.
  - The number of devices the user uses with sync must be >= 2.
  - The user must currently be on an HTTP or HTTPS page.
  - The user is not on an Android native page.
  - Active tab is not in inCognito mode

Bug: 921767
Change-Id: Ifab23067d34b97f5ef1026bf906a8b6fc656176f
Reviewed-on: https://chromium-review.googlesource.com/c/1399446
Commit-Queue: Tanya Gupta <tgupta@chromium.org>
Reviewed-by: Tommy Nyquist <nyquist@chromium.org>
Cr-Commit-Position: refs/heads/master@{#626931}