tree 8b87ad206e3b32fcb063554539a087b886f8f383
parent 067c45b1eeb5a861667e64436bfa87babedcf1ea
author markchien <markchien@google.com> 1583162868 +0800
committer Mark Chien <markchien@google.com> 1583718680 +0000

Send offload status changed callback

The callback would be fired when offload started, stopped, or failed.
If offload is not supported, "failed" callback would be fired when user
enable tethering. Enabling multiple tethering would not have multiple
offload status callbacks because offload should already be started or
failed.

Bug: 130596697
Test: -build, flash, boot
      -atest TetheringTests
      -ON/OFF hotspot
Change-Id: Ia0398601144b0e5f61dc0c5771eacf13e7cfbb59