Using autorolled version of androidx.browser

We can't totally delete the old folder since we need to change refs
in other repos first - once they are all updated, we can delete
//third_party/android_sdk/androidx_browser

Bug: 1180183
Change-Id: I30f8d3aff621083abd6a0d455c464497d120cb61
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2710887
Auto-Submit: Sam Maier <smaier@chromium.org>
Reviewed-by: Peter Kotwicz <pkotwicz@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Reviewed-by: Mustafa Emre Acer <meacer@chromium.org>
Commit-Queue: Mustafa Emre Acer <meacer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#856770}
GitOrigin-RevId: 20610c7bc7a203b173f2dd409c8fe2257855525c