Fix a11y traits of TableViewTextHeaderFooterView.

TableViewTextHeaderFooterView has UIAccessibilityTraits of
UIAccessibilityTraitButton and UIAccessibilityTraitHeader, but it's
never used as a button. This CL removes the UIAccessibilityTraitButton.

Bug: 910258
Change-Id: Id04c72449e5e2cfa3ea85efe3b9ea2cd05c6e2b6
Reviewed-on: https://chromium-review.googlesource.com/c/1378131
Reviewed-by: Sergio Collazos <sczs@chromium.org>
Commit-Queue: Yi Su <mrsuyi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616761}
1 file changed