[Webkit-unassigned] [Bug 223471] New: Avoid copying item data when iterating in-process display lists

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=223471

            Bug ID: 223471
           Summary: Avoid copying item data when iterating in-process
                    display lists
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: wenson_hsieh at apple.com

This copy is unnecessary (and potentially expensive) in the case of in-process display lists (e.g. the display lists used to cache glyph data when painting text at high frequency).

Impacts the Design subtest of MotionMark.

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