[Webkit-unassigned] [Bug 210216] New: Generate event region for every root layer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=210216

            Bug ID: 210216
           Summary: Generate event region for every root layer
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: dbates at webkit.org

RenderLayer::invalidateEventRegion() and RenderLayerBacking::updateEventRegion() only generate an event region for non-root layers so the UI process has more info for hit testing.

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