Bug 86246

Summary: FrameView->m_lastPaintTime is not updated in the tiled drawing case
Product: WebKit Reporter: Tim Horton <thorton>
Component: Layout and RenderingAssignee: Nobody <webkit-unassigned>
Severity: Normal CC: andersca, eric, koivisto, simon.fraser, webkit.review.bot
Priority: P2 Keywords: InRadar
Version: 528+ (Nightly build)   
Hardware: Unspecified   
OS: Unspecified   
Description Flags
patch simon.fraser: review+

Description Tim Horton 2012-05-11 13:06:42 PDT
FrameView->m_lastPaintTime is only updated from FrameView::paintContents, not RenderLayerBacking::paintContents. This causes m_lastPaintTime to never get updated in the tiled drawing case. This can cause horrible things, like the HTML parser incessantly yielding even after the page has always painted, on a page with lots of inline <script>s, etc.
Comment 1 Tim Horton 2012-05-11 13:11:49 PDT
Created attachment 141481 [details]
Comment 2 Tim Horton 2012-05-11 13:16:30 PDT
Comment 3 Tim Horton 2012-05-11 13:16:46 PDT