Removed unused element parameter.

Source/core/css/resolver/StyleAdjuster.cpp

Index: Source/core/css/resolver/StyleAdjuster.cpp
diff --git a/Source/core/css/resolver/StyleAdjuster.cpp b/Source/core/css/resolver/StyleAdjuster.cpp
index c364b0db535fa8993c5a3b4f7ffdb48e5f9f9f44..5cc0735a0b0b9db9a2744fa475559c006d855f3d 100644
--- a/Source/core/css/resolver/StyleAdjuster.cpp
+++ b/Source/core/css/resolver/StyleAdjuster.cpp
@@ -162,7 +162,7 @@ static bool parentStyleForcesZIndexToCreateStackingContext(const RenderStyle* pa
     return isDisplayFlexibleBox(parentStyle->display()) || isDisplayGridBox(parentStyle->display());
 }
 
-static bool hasWillChangeThatCreatesStackingContext(const RenderStyle* style, Element* e)
+static bool hasWillChangeThatCreatesStackingContext(const RenderStyle* style)
 {
     for (size_t i = 0; i < style->willChangeProperties().size(); ++i) {
         switch (style->willChangeProperties()[i]) {
@@ -234,7 +234,7 @@ void StyleAdjuster::adjustRenderStyle(RenderStyle* style, RenderStyle* parentSty
         || style->position() == StickyPosition
         || style->position() == FixedPosition
         || isInTopLayer(e, style)
-        || hasWillChangeThatCreatesStackingContext(style, e)))
+        || hasWillChangeThatCreatesStackingContext(style)))
         style->setZIndex(0);
 
     // will-change:transform should result in the same rendering behavior as having a transform,