third_party/WebKit/Source/core/layout/compositing/CompositingInputsUpdater.h - Issue 1870663002: Reland main thread position sticky implementation.

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Unified Diff: third_party/WebKit/Source/core/layout/compositing/CompositingInputsUpdater.h

Issue 1870663002: Reland main thread position sticky implementation. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Only descend into children which have an ancestor overflow layer. Created 4 years, 8 months ago

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Index: third_party/WebKit/Source/core/layout/compositing/CompositingInputsUpdater.h

diff --git a/third_party/WebKit/Source/core/layout/compositing/CompositingInputsUpdater.h b/third_party/WebKit/Source/core/layout/compositing/CompositingInputsUpdater.h

index d182c9263b12a5ea432cbcbef241ec3f10c42d20..1723c8d210e296101aa7bfae2d7d128a88be5831 100644

--- a/third_party/WebKit/Source/core/layout/compositing/CompositingInputsUpdater.h

+++ b/third_party/WebKit/Source/core/layout/compositing/CompositingInputsUpdater.h

@@ -34,6 +34,7 @@ private:

AncestorInfo()

: ancestorStackingContext(nullptr)

, enclosingCompositedLayer(nullptr)

+ , lastOverflowClipLayer(nullptr)

, lastScrollingAncestor(nullptr)

, hasAncestorWithClipRelatedProperty(false)

, hasAncestorWithClipPath(false)

@@ -42,6 +43,7 @@ private:

PaintLayer* ancestorStackingContext;

PaintLayer* enclosingCompositedLayer;

+ PaintLayer* lastOverflowClipLayer;

// Notice that lastScrollingAncestor isn't the same thing as

// ancestorScrollingLayer. The former is just the nearest scrolling

// along the PaintLayer::parent() chain. The latter is the layer that