[Webkit-unassigned] [Bug 113098] New: [Chromium] Filter effect disappears when changing element class name

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=113098

           Summary: [Chromium] Filter effect disappears when changing
                    element class name
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: dmazzoni at google.com


Created an attachment (id=194630)
 --> (https://bugs.webkit.org/attachment.cgi?id=194630&action=review)
Code to repro the bug

This problem seems to manifest when:

* A CSS rule uses an attribute selector to apply a filter effect.
* The filter effect is a reference to an SVG filter.
* The element that the effect is applied to changes its class name - the filter should be unaffected, but it's lost.

Minimal repro attached. Bug repros on all current versions of Chrome from stable to Canary. Tested on Mac OS X, with hardware acceleration enabled.

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