[Webkit-unassigned] [Bug 101252] New: Changing background-color and left at the same time will not change the background-color (under graphics acceleration)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=101252

           Summary: Changing background-color and left at the same time
                    will not change the background-color (under graphics
                    acceleration)
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: Layout and Rendering
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jonathan at tumult.com


Created an attachment (id=172395)
 --> (https://bugs.webkit.org/attachment.cgi?id=172395&action=review)
Demonstrates Bug

Summary:
Changing background-color and left at the same time will not change the background-color (under graphics acceleration).

Steps to Reproduce:
1. Open attached BackgroundColorBug.html

Expected Results:
All the boxes slowly change color.

Actual Results:
Only the boxes not moving or not using "-webkit-transform:rotateY(0deg)" actually change color.

Regression:
Has happened for a while, not new to 6.0, but still bad.

Notes:
Behavior in Chrome 22, Canary 25.0.1315.1: reproduces
Behavior in Chrome for Windows: reproduces
Behavior in Firefox 16 (if applicable): Does not occur

Chromium bug:
http://code.google.com/p/chromium/issues/detail?id=159253

Radar:
<rdar://problem/12628214> Changing background-color and left at the same time does not work

This affects customers using Tumult Hype (http://tumult.com/hype).

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