[Webkit-unassigned] [Bug 174130] New: Move more code from ScrollingTreeScrollingNodeDelegateIOS to ScrollingTreeScrollingNodeDelegate

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=174130

            Bug ID: 174130
           Summary: Move more code from
                    ScrollingTreeScrollingNodeDelegateIOS to
                    ScrollingTreeScrollingNodeDelegate
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Frames
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: fred.wang at free.fr
        Depends on: 174097
            Blocks: 149264

Created attachment 314564

  --> https://bugs.webkit.org/attachment.cgi?id=314564&action=review

Patch

This is a follow-up of bug 174097. It seems we can move most of the logic to ScrollingTreeScrollingNodeDelegate.

I'm attaching a patch doing that. ScrollingTreeOverflowScrollingNodeIOS::commitStateBeforeChildren could be simplified a bit more if ScrolledContentsLayer was on the ScrollingStateScrollingNode.


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=149264
[Bug 149264] IFrame scrolling=yes is ignored in iOS Safari
https://bugs.webkit.org/show_bug.cgi?id=174097
[Bug 174097] Introduce ScrollingTreeScrollingNodeDelegateIOS to share code between overflow and frame scrolling
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