Move squash preventing reasons out of compositing reasons

third_party/WebKit/Source/core/layout/compositing/CompositedLayerMapping.cpp

 /*
  * Copyright (C) 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 191 matching lines @@
     updateChildTransformLayer(false);
     updateForegroundLayer(false);
     updateBackgroundLayer(false);
     updateMaskLayer(false);
     updateChildClippingMaskLayer(false);
     updateScrollingLayers(false);
     updateSquashingLayers(false);
     destroyGraphicsLayers();
 }
 
-PassOwnPtr<GraphicsLayer> CompositedLayerMapping::createGraphicsLayer(CompositingReasons reasons)
+PassOwnPtr<GraphicsLayer> CompositedLayerMapping::createGraphicsLayer(CompositingReasons reasons, SquashingDisallowedReasons squashingDisallowedReasons)
 {
     GraphicsLayerFactory* graphicsLayerFactory = nullptr;
     if (Page* page = layoutObject()->frame()->page())
         graphicsLayerFactory = page->chromeClient().graphicsLayerFactory();
 
     OwnPtr<GraphicsLayer> graphicsLayer = GraphicsLayer::create(graphicsLayerFactory, this);
 
     graphicsLayer->setCompositingReasons(reasons);
+    graphicsLayer->setSquashingDisallowedReasons(squashingDisallowedReasons);
     if (Node* owningNode = m_owningLayer.layoutObject()->generatingNode())
         graphicsLayer->setOwnerNodeId(DOMNodeIds::idForNode(owningNode));
 
     return graphicsLayer.release();
 }
 
 void CompositedLayerMapping::createPrimaryGraphicsLayer()
 {
-    m_graphicsLayer = createGraphicsLayer(m_owningLayer.compositingReasons());
+    m_graphicsLayer = createGraphicsLayer(m_owningLayer.compositingReasons(), m_owningLayer.squashingDisallowedReasons());
 
     updateOpacity(layoutObject()->styleRef());
     updateTransform(layoutObject()->styleRef());
     updateFilters(layoutObject()->styleRef());
     updateBackdropFilters(layoutObject()->styleRef());
 
     if (RuntimeEnabledFeatures::cssCompositingEnabled()) {
         updateLayerBlendMode(layoutObject()->styleRef());
         updateIsRootForIsolatedGroup();
     }
@@ skipping 99 matching lines @@
             innerCompositor->frameViewDidChangeLocation(flooredIntPoint(contentsBox().location()));
         }
     }
 }
 
 void CompositedLayerMapping::updateCompositingReasons()
 {
     // All other layers owned by this mapping will have the same compositing reason
     // for their lifetime, so they are initialized only when created.
     m_graphicsLayer->setCompositingReasons(m_owningLayer.compositingReasons());
+    m_graphicsLayer->setSquashingDisallowedReasons(m_owningLayer.squashingDisallowedReasons());
 }
 
 bool CompositedLayerMapping::owningLayerClippedByLayerNotAboveCompositedAncestor(const PaintLayer* scrollParent)
 {
     if (!m_owningLayer.parent())
         return false;
 
     const PaintLayer* compositingAncestor = m_owningLayer.enclosingLayerWithCompositedLayerMapping(ExcludeSelf);
     if (!compositingAncestor)
         return false;
@@ skipping 2180 matching lines @@
     } else if (graphicsLayer == m_scrollingContentsLayer.get()) {
         name = "Scrolling Contents Layer";
     } else {
         ASSERT_NOT_REACHED();
     }
 
     return name;
 }
 
 } // namespace blink