Drop RenderObject::hasBlendMode

Source/core/rendering/compositing/CompositingLayerAssigner.cpp

 /*
  * Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Google 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
@@ skipping 127 matching lines @@
     // FIXME: this is only necessary because there is frame code that assumes that composited frames are not squashed.
     if (layer->renderer()->isRenderPart() || squashingLayer.renderer()->isRenderPart())
         return CompositingReasonSquashingRenderPartIsDisallowed;
 
     if (layer->reflectionInfo())
         return CompositingReasonSquashingReflectionIsDisallowed;
 
     if (squashingWouldExceedSparsityTolerance(layer, squashingState))
         return CompositingReasonSquashingSparsityExceeded;
 
-    if (layer->renderer()->hasBlendMode())
+    if (layer->renderer()->style()->hasBlendMode())
         return CompositingReasonSquashingBlendingIsDisallowed;
 
     // FIXME: this is not efficient, since it walks up the tree. We should store these values on the CompositingInputsCache.
     if (layer->clippingContainer() != squashingLayer.clippingContainer() && !squashingLayer.compositedLayerMapping()->containingSquashedLayer(layer->clippingContainer(), squashingState.nextSquashedLayerIndex))
         return CompositingReasonSquashingClippingContainerMismatch;
 
     // Composited descendants need to be clipped by a child containment graphics layer, which would not be available if the layer is
     // squashed (and therefore has no CLM nor a child containment graphics layer).
     if (m_compositor->clipsCompositingDescendants(layer))
         return CompositingReasonSquashedLayerClipsCompositingDescendants;
@@ skipping 131 matching lines @@
 
     RenderLayerStackingNodeIterator iterator(*layer->stackingNode(), NormalFlowChildren | PositiveZOrderChildren);
     while (RenderLayerStackingNode* curNode = iterator.next())
         assignLayersToBackingsInternal(curNode->layer(), squashingState, layersNeedingPaintInvalidation);
 
     if (squashingState.hasMostRecentMapping && &squashingState.mostRecentMapping->owningLayer() == layer)
         squashingState.haveAssignedBackingsToEntireSquashingLayerSubtree = true;
 }
 
 }