third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp - Issue 2536443002: Reland "Only promote opaque scrollers which are stacking contexts."

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Unified Diff: third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp

Issue 2536443002: Reland "Only promote opaque scrollers which are stacking contexts." (Closed)

Patch Set: Created 4 years, 1 month ago

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Index: third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp

diff --git a/third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp b/third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp

index 742a651142649cf011455bdb5dbd3840902678ca..443b303bad88770b3c764c988a469f89b4e338aa 100644

--- a/third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp

+++ b/third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp

@@ -1708,6 +1708,7 @@ static bool layerNeedsCompositedScrolling(

// transforms are also integer.

bool backgroundSupportsLCDText =

RuntimeEnabledFeatures::compositeOpaqueScrollersEnabled() &&

+ layer->layoutObject()->style()->isStackingContext() &&

layer->canPaintBackgroundOntoScrollingContentsLayer() &&

layer->backgroundIsKnownToBeOpaqueInRect(

toLayoutBox(layer->layoutObject())->paddingBoxRect()) &&