Remove will-change: contents GPU rasterization hint

Source/core/rendering/compositing/CompositedLayerMapping.cpp

Index: Source/core/rendering/compositing/CompositedLayerMapping.cpp
diff --git a/Source/core/rendering/compositing/CompositedLayerMapping.cpp b/Source/core/rendering/compositing/CompositedLayerMapping.cpp
index 5c12881a8f0c78500ba03cc1f7248613ecdc5f7d..f9860ac2d391db22234c8ef10db6f752ce69640c 100644
--- a/Source/core/rendering/compositing/CompositedLayerMapping.cpp
+++ b/Source/core/rendering/compositing/CompositedLayerMapping.cpp
@@ -233,7 +233,6 @@ void CompositedLayerMapping::createPrimaryGraphicsLayer()
     updateOpacity(renderer()->style());
     updateTransform(renderer()->style());
     updateFilters(renderer()->style());
-    updateHasGpuRasterizationHint(renderer()->style());
 
     if (RuntimeEnabledFeatures::cssCompositingEnabled()) {
         updateLayerBlendMode(renderer()->style());
@@ -311,11 +310,6 @@ void CompositedLayerMapping::updateIsRootForIsolatedGroup()
     m_graphicsLayer->setIsRootForIsolatedGroup(isolate);
 }
 
-void CompositedLayerMapping::updateHasGpuRasterizationHint(const RenderStyle* style)
-{
-    m_graphicsLayer->setHasGpuRasterizationHint(style->hasWillChangeGpuRasterizationHint());
-}
-
 void CompositedLayerMapping::updateContentsOpaque()
 {
     // For non-root layers, background is always painted by the primary graphics layer.
@@ -843,7 +837,6 @@ void CompositedLayerMapping::updateGraphicsLayerGeometry(GraphicsLayerUpdater::U
         updateIsRootForIsolatedGroup();
     }
 
-    updateHasGpuRasterizationHint(renderer()->style());
     updateContentsRect();
     updateBackgroundColor();
     updateDrawsContent();