third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp - Issue 2387883002: Use float for scroll offset.

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Unified Diff: third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp

Issue 2387883002: Use float for scroll offset. (Closed)

Patch Set: tweaks and docs Created 4 years, 2 months ago

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« third_party/WebKit/Source/core/layout/README.md ('K') | « third_party/WebKit/Source/core/layout/compositing/CompositedLayerMappingTest.cpp ('k') | third_party/WebKit/Source/core/layout/doc/ltr-tb-scroll.png » ('j') | no next file with comments »
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Index: third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp

diff --git a/third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp b/third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp

index 5ca7a75f74bf11b883c21bc9396d00fce2436396..10a4472cb86614893b5561f17f55ef104703438f 100644

--- a/third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp

+++ b/third_party/WebKit/Source/core/layout/compositing/PaintLayerCompositor.cpp

@@ -639,7 +639,7 @@ enum AcceleratedFixedRootBackgroundHistogramBuckets {

void PaintLayerCompositor::frameViewDidScroll() {

FrameView* frameView = m_layoutView.frameView();

- IntPoint scrollPosition = frameView->scrollPosition();

+ IntSize scrollOffset = frameView->scrollOffsetInt();

if (!m_scrollLayer)

return;

@@ -657,7 +657,7 @@ void PaintLayerCompositor::frameViewDidScroll() {

if (scrollingCoordinatorHandlesOffset)

m_scrollLayer->setPosition(frameView->scrollOrigin());

else

- m_scrollLayer->setPosition(-scrollPosition);

+ m_scrollLayer->setPosition(IntPoint(-scrollOffset));

DEFINE_STATIC_LOCAL(EnumerationHistogram, acceleratedBackgroundHistogram,

("Renderer.AcceleratedFixedRootBackground",