DevTools: add auto-adjust zoom checkbox to device mode

This CL adds a checkbox to the zoom dropdown, allowing users to
turn off 'Auto-adjust zoom', which scales the device to fit upon
rotation and switching devices. It is on by default.


Bug: 718659
Change-Id: Ief5c3a2b84362b2125d51cd39bd5dc3e669a3e60
Commit-Queue: Erik Luo <>
Reviewed-by: Dmitry Gozman <>
Cr-Commit-Position: refs/heads/master@{#531127}
3 files changed