Give console warning for deprecation of DownloadInSandboxWithoutUserActivation

Add a method to cover features that was logged from the browser side.

Bug: 539938
Change-Id: I4b6cbdcb8e37afdd5862f15f2f7c877b13d30897
Reviewed-on: https://chromium-review.googlesource.com/c/1437775
Commit-Queue: Yao Xiao <yaoxia@chromium.org>
Reviewed-by: Charlie Harrison <csharrison@chromium.org>
Cr-Commit-Position: refs/heads/master@{#626402}
1 file changed