[Webkit-unassigned] [Bug 53649] New: move-left-right.html and extend-selection-*.html are slow

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=53649

           Summary: move-left-right.html and extend-selection-*.html are
                    slow
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: P2
         Component: HTML Editing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: eric at webkit.org, darin at apple.com, enrica at apple.com


According to the bug 27995, the two slowest tests are from editing/selection.

9.58 secs: editing/selection/move-left-right.html
9.37 secs: fast/js/array-filter.html
7.71 secs: editing/selection/extend-selection.html

We should improve the performance.

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