<progress> doesn’t control its own height, so when we repaint it, we don’t know how much to repaint (we repaint 1em by default, but if you set a height: via CSS you can make the repaint problem worse or better). <rdar://problem/11571240>
Created attachment 211158 [details] patch
Attachment 211158 [details] did not pass style-queue: Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'LayoutTests/ChangeLog', u'LayoutTests/platform/mac/fast/forms/indeterminate-progress-inline-height-expected.txt', u'LayoutTests/platform/mac/fast/forms/indeterminate-progress-inline-height.html', u'Source/WebCore/ChangeLog', u'Source/WebCore/rendering/RenderProgress.cpp', u'Source/WebCore/rendering/RenderProgress.h', u'Source/WebCore/rendering/RenderTheme.cpp', u'Source/WebCore/rendering/RenderTheme.h', u'Source/WebCore/rendering/RenderThemeMac.h', u'Source/WebCore/rendering/RenderThemeMac.mm']" exit_code: 1 Source/WebCore/rendering/RenderProgress.h:50: The parameter name "computedValues" adds no information, so it should be removed. [readability/parameter_name] [5] Total errors found: 1 in 10 files If any of these errors are false positives, please file a bug against check-webkit-style.
Created attachment 211159 [details] patch got stale
http://trac.webkit.org/changeset/155460