[Webkit-unassigned] [Bug 19401] New: Layout-test results for media/video-controls-rendering.html loses backgroundClip and outlineClip after change to html4.css

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=19401

           Summary: Layout-test results for media/video-controls-
                    rendering.html loses backgroundClip and outlineClip
                    after change to html4.css
           Product: WebKit
           Version: 526+ (Nightly build)
          Platform: PC
        OS/Version: Mac OS X 10.5
            Status: NEW
          Severity: Normal
          Priority: P3
         Component: Tools / Tests
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: tavestbo at trolltech.com


Change r34299 modified html4.css to allow media element controls to be placed
anywhere on the media element, and updated the default positioning to be based
on the bottom of the media element, not the top.

This caused regressions in three layout-tests which were updated in r34376. One
of these (media/video-controls-rendering.html) had the following diff:

-layer at (8,746) size 320x18 backgroundClip at (0,0) size 785x762 clip at
(0,0) size 785x762 outlineClip at (0,0) size 785x762
-  RenderBlock (positioned) {DIV} at (0,224) size 320x16
+layer at (8,522) size 320x240
+  RenderBlock (positioned) {DIV} at (0,0) size 320x240

The question is, why do we loose backgroundClip and outlineClip here, and does
it matter? Visually, the actual results look the same as before, so we safely
assumed we could update the results, but in case these two changes
(backgroundClip and outlineClip) actually do something we need to go back and
investigate further.


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