Bug 253771

Hi Team,

While going through Blink's commit, I came across another potential merge and I have tested this locally on --release build and does not seem to cause any issue. Although EWS or Debug builds might have other story to tell.

NOTE - Motivation to merge is to get rid of "FIXME" and deadcode is deadcode:

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Blink Commit - https://chromium.googlesource.com/chromium/blink/+/bd25c52a9a4dcd09e0ed47ba300cf82e86b28cb7

WebKit Source - https://searchfox.org/wubkat/source/Source/WebCore/rendering/RenderLayer.cpp#4480

^ Removed:


            ClipRectsContext parentContext(clipRectsContext);
            parentContext.options.remove(ClipRectsOption::IncludeOverlayScrollbarSize); // FIXME: Why?
            
            if ((parentContext.clipRectsType != TemporaryClipRects && parentContext.clipRectsType != AbsoluteClipRects) && clipCrossesPaintingBoundary())
                parentContext.clipRectsType = TemporaryClipRects;

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Replaced:

parentLayer->calculateClipRects(parentContext, clipRects);

with

parentLayer->calculateClipRects(clipRectsContext, clipRects);

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Just wanted to raise to get input.

Thanks!