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When Views are invisible by opacity 0 but still have visibility true,
screenreader would still be able to read it. We need to explicitly
set their visibility to false.

Bug: b:113731925
Test: locally build and not able to navigate to these elements with
Test: screen reader
Change-Id: Ibb1b111844dbd6021c267ef594777614cf127189
Reviewed-on: https://chromium-review.googlesource.com/1212342Reviewed-by: Muyuan Li <muyuanli@chromium.org>
Commit-Queue: Xiaohui Chen <xiaohuic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590085}