commit e90c3a033b0743b58d3d790662b2788476dac5de
author Kevin McNee <mcnee@chromium.org> Tue Dec 11 16:58:08 2018
committer Commit Bot <commit-bot@chromium.org> Tue Dec 11 16:58:08 2018
tree 12ec04f986c6a492cb2418605fbe04abcce0ead2
parent 26cbade5de8d3803d9bf83ee1686022056e2d295

Reland "Refactor OOPIF scroll bubbling state and cancellation"

This is a reland of b9e5ed2a6f6cacce39c19a36bb76a940244def99

Original change's description:
> Refactor OOPIF scroll bubbling state and cancellation
>
> Whether or not a child is bubbling scroll was being tracked in both
> CrossProcessFrameConnector and RenderWidgetHostViewChildFrame. It's
> simpler to just have it in RWHVCF.
>
> There are several cases where we generate fake scroll updates when
> cancelling scroll bubbling. This is a relic from the non-scroll latching
> code paths and has been removed. We also deduplicate the scroll bubbling
> cancellation code.
>
> We were tracking the view from which scroll events are bubbled by keeping
> a reference to that view's parent. We now just keep a reference to the
> originating view directly.
>
> We also now properly cancel scroll bubbling when a child detaches.
>
> Bug: 828422, 897216
> Change-Id: Iee983bd9ea05b324d556c66320a1bc5e544de057
> Reviewed-on: https://chromium-review.googlesource.com/c/1357563
> Reviewed-by: Ken Buchanan <kenrb@chromium.org>
> Commit-Queue: Kevin McNee <mcnee@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#615184}

Tbr: kenrb@chromium.org
Bug: 828422, 897216
Change-Id: If529545300f6bbb7a7056cdbebbd8317cb274f7a
Reviewed-on: https://chromium-review.googlesource.com/c/1371010
Reviewed-by: Kevin McNee <mcnee@chromium.org>
Commit-Queue: Kevin McNee <mcnee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#615557}