| Index: Source/core/paint/DeprecatedPaintLayer.h
|
| diff --git a/Source/core/paint/DeprecatedPaintLayer.h b/Source/core/paint/DeprecatedPaintLayer.h
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| index a32f7d68019a8617f67f014359284f9734ab23a1..b38dd5023aabf791c975acce9039ffb4e0abf5c3 100644
|
| --- a/Source/core/paint/DeprecatedPaintLayer.h
|
| +++ b/Source/core/paint/DeprecatedPaintLayer.h
|
| @@ -195,9 +195,14 @@ public:
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| bool hasVisibleNonLayerContent() const { return m_hasVisibleNonLayerContent; }
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| bool hasNonCompositedChild() const { ASSERT(isAllowedToQueryCompositingState()); return m_hasNonCompositedChild; }
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|
|
| - // Gets the nearest enclosing positioned ancestor layer (also includes
|
| - // the <html> layer and the root layer).
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| - DeprecatedPaintLayer* enclosingPositionedAncestor() const;
|
| + // Gets the ancestor layer that serves as the containing block of this layer. It is assumed
|
| + // that this layer is established by an out-of-flow positioned layout object (i.e. either
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| + // absolutely or fixed positioned).
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| + // If |ancestor| is specified, |*skippedAncestor| will be set to true if |ancestor| is found in
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| + // the ancestry chain between this layer and the containing block layer; if not found, it will
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| + // be set to false. Either both |ancestor| and |skippedAncestor| should be nullptr, or none of
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| + // them should.
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| + DeprecatedPaintLayer* enclosingPositionedAncestor(const DeprecatedPaintLayer* ancestor = nullptr, bool* skippedAncestor = nullptr) const;
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|
|
| bool isPaintInvalidationContainer() const;
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|