Change PaintLayer::m_layoutObject to a reference.

third_party/WebKit/Source/core/testing/Internals.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2013 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.
@@ skipping 1535 matching lines @@
                                              GraphicsLayer* graphicsLayer,
                                              IntSize* layerOffset,
                                              String* layerType) {
   *layerOffset = IntSize();
   if (searchRoot->hasCompositedLayerMapping() &&
       graphicsLayer ==
           searchRoot->compositedLayerMapping()->mainGraphicsLayer()) {
     // If the |graphicsLayer| sets the scrollingContent layer as its
     // scroll parent, consider it belongs to the scrolling layer and
     // mark the layer type as "scrolling".
-    if (!searchRoot->layoutObject()->hasTransformRelatedProperty() &&
+    if (!searchRoot->layoutObject().hasTransformRelatedProperty() &&
         searchRoot->scrollParent() &&
         searchRoot->parent() == searchRoot->scrollParent()) {
       *layerType = "scrolling";
       // For hit-test rect visualization to work, the hit-test rect should
       // be relative to the scrolling layer and in this case the hit-test
       // rect is relative to the element's own GraphicsLayer. So we will have
       // to adjust the rect to be relative to the scrolling layer here.
       // Only when the element's offsetParent == scroller's offsetParent we
       // can compute the element's relative position to the scrolling content
       // in this way.
-      if (searchRoot->layoutObject()->offsetParent() ==
-          searchRoot->parent()->layoutObject()->offsetParent()) {
-        LayoutBoxModelObject* current = searchRoot->layoutObject();
-        LayoutBoxModelObject* parent = searchRoot->parent()->layoutObject();
-        layerOffset->setWidth((parent->offsetLeft(parent->offsetParent()) -
-                               current->offsetLeft(parent->offsetParent()))
+      if (searchRoot->layoutObject().offsetParent() ==
+          searchRoot->parent()->layoutObject().offsetParent()) {
+        LayoutBoxModelObject& current = searchRoot->layoutObject();
+        LayoutBoxModelObject& parent = searchRoot->parent()->layoutObject();
+        layerOffset->setWidth((parent.offsetLeft(parent.offsetParent()) -
+                               current.offsetLeft(parent.offsetParent()))
                                   .toInt());
-        layerOffset->setHeight((parent->offsetTop(parent->offsetParent()) -
-                                current->offsetTop(parent->offsetParent()))
+        layerOffset->setHeight((parent.offsetTop(parent.offsetParent()) -
+                                current.offsetTop(parent.offsetParent()))
                                    .toInt());
         return searchRoot->parent();
       }
     }
 
     LayoutRect rect;
     PaintLayer::mapRectInPaintInvalidationContainerToBacking(
-        *searchRoot->layoutObject(), rect);
+        searchRoot->layoutObject(), rect);
     rect.move(searchRoot->compositedLayerMapping()
                   ->contentOffsetInCompositingLayer());
 
     *layerOffset = IntSize(rect.x().toInt(), rect.y().toInt());
     return searchRoot;
   }
 
   // If the |graphicsLayer| is a scroller's scrollingContent layer,
   // consider this is a scrolling layer.
   GraphicsLayer* layerForScrolling =
       searchRoot->getScrollableArea()
           ? searchRoot->getScrollableArea()->layerForScrolling()
           : 0;
   if (graphicsLayer == layerForScrolling) {
     *layerType = "scrolling";
     return searchRoot;
   }
 
   if (searchRoot->compositingState() == PaintsIntoGroupedBacking) {
     GraphicsLayer* squashingLayer =
         searchRoot->groupedMapping()->squashingLayer();
     if (graphicsLayer == squashingLayer) {
       *layerType = "squashing";
       LayoutRect rect;
       PaintLayer::mapRectInPaintInvalidationContainerToBacking(
-          *searchRoot->layoutObject(), rect);
+          searchRoot->layoutObject(), rect);
       *layerOffset = IntSize(rect.x().toInt(), rect.y().toInt());
       return searchRoot;
     }
   }
 
   GraphicsLayer* layerForHorizontalScrollbar =
       searchRoot->getScrollableArea()
           ? searchRoot->getScrollableArea()->layerForHorizontalScrollbar()
           : 0;
   if (graphicsLayer == layerForHorizontalScrollbar) {
@@ skipping 81 matching lines @@
                                     GraphicsLayer* graphicsLayer,
                                     LayerRectList* rects) {
   WebVector<blink::WebRect> layerRects =
       graphicsLayer->platformLayer()->touchEventHandlerRegion();
   if (!layerRects.isEmpty()) {
     mergeRects(layerRects);
     String layerType;
     IntSize layerOffset;
     PaintLayer* paintLayer = findLayerForGraphicsLayer(
         compositor->rootLayer(), graphicsLayer, &layerOffset, &layerType);
-    Node* node = paintLayer ? paintLayer->layoutObject()->node() : 0;
+    Node* node = paintLayer ? paintLayer->layoutObject().node() : 0;
     for (size_t i = 0; i < layerRects.size(); ++i) {
       if (!layerRects[i].isEmpty()) {
         rects->append(node, layerType, layerOffset.width(),
                       layerOffset.height(), ClientRect::create(layerRects[i]));
       }
     }
   }
 
   size_t numChildren = graphicsLayer->children().size();
   for (size_t i = 0; i < numChildren; ++i)
@@ skipping 1425 matching lines @@
 
 void Internals::crash() {
   CHECK(false) << "Intentional crash";
 }
 
 void Internals::setIsLowEndDevice(bool isLowEndDevice) {
   MemoryCoordinator::setIsLowEndDeviceForTesting(isLowEndDevice);
 }
 
 }  // namespace blink