Use LayoutRect for frame rect in HitTestResultInFrame

This is consistent with how the frame rect is treated in other cases of
hit-testing (such as LayoutView::HitTestNoLifecycleUpdate). It also
eliminates the need for HitTestLocation::Intersects(const FloatRect&).
(The other "use" of this method is removed since it isn't used.)

Bug: 823796
Change-Id: I7532f0e685e9960d8afd16f9b41d699ae27bfd11
Reviewed-on: https://chromium-review.googlesource.com/1249142
Commit-Queue: Chris Harrelson <chrishtr@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Cr-Commit-Position: refs/heads/master@{#594795}
2 files changed