reflow comments in core/layout/compositing,core/observer

third_party/WebKit/Source/core/layout/compositing/GraphicsLayerTreeBuilder.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 32 matching lines @@
   Node* node = layer.layoutObject()->node();
   if (node && isHTMLVideoElement(*node)) {
     HTMLVideoElement* element = toHTMLVideoElement(node);
     if (element->isFullscreen() && element->usesOverlayFullscreenVideo())
       return false;
   }
   return true;
 }
 
 void GraphicsLayerTreeBuilder::rebuild(PaintLayer& layer, AncestorInfo info) {
-  // Make the layer compositing if necessary, and set up clipping and content layers.
-  // Note that we can only do work here that is independent of whether the descendant layers
-  // have been processed. computeCompositingRequirements() will already have done the paint invalidation if necessary.
+  // Make the layer compositing if necessary, and set up clipping and content
+  // layers.  Note that we can only do work here that is independent of whether
+  // the descendant layers have been processed. computeCompositingRequirements()
+  // will already have done the paint invalidation if necessary.
 
   layer.stackingNode()->updateLayerListsIfNeeded();
 
   const bool hasCompositedLayerMapping = layer.hasCompositedLayerMapping();
   CompositedLayerMapping* currentCompositedLayerMapping =
       layer.compositedLayerMapping();
 
-  // If this layer has a compositedLayerMapping, then that is where we place subsequent children GraphicsLayers.
-  // Otherwise children continue to append to the child list of the enclosing layer.
+  // If this layer has a compositedLayerMapping, then that is where we place
+  // subsequent children GraphicsLayers.  Otherwise children continue to append
+  // to the child list of the enclosing layer.
   GraphicsLayerVector layerChildren;
   AncestorInfo infoForChildren(info);
   if (hasCompositedLayerMapping) {
     infoForChildren.childLayersOfEnclosingCompositedLayer = &layerChildren;
     infoForChildren.enclosingCompositedLayer = &layer;
   }
 
 #if ENABLE(ASSERT)
   LayerListMutationDetector mutationChecker(layer.stackingNode());
 #endif
 
   if (layer.stackingNode()->isStackingContext()) {
     PaintLayerStackingNodeIterator iterator(*layer.stackingNode(),
                                             NegativeZOrderChildren);
     while (PaintLayerStackingNode* curNode = iterator.next())
       rebuild(*curNode->layer(), infoForChildren);
 
-    // If a negative z-order child is compositing, we get a foreground layer which needs to get parented.
+    // If a negative z-order child is compositing, we get a foreground layer
+    // which needs to get parented.
     if (hasCompositedLayerMapping &&
         currentCompositedLayerMapping->foregroundLayer())
       infoForChildren.childLayersOfEnclosingCompositedLayer->append(
           currentCompositedLayerMapping->foregroundLayer());
   }
 
   PaintLayerStackingNodeIterator iterator(
       *layer.stackingNode(), NormalFlowChildren | PositiveZOrderChildren);
   while (PaintLayerStackingNode* curNode = iterator.next())
     rebuild(*curNode->layer(), infoForChildren);
@@ skipping 18 matching lines @@
           ->compositedLayerMapping()
           ->needsToReparentOverflowControls() &&
       layer.scrollParent()->getScrollableArea()->topmostScrollChild() == &layer)
     info.childLayersOfEnclosingCompositedLayer->append(
         layer.scrollParent()
             ->compositedLayerMapping()
             ->detachLayerForOverflowControls(*info.enclosingCompositedLayer));
 }
 
 }  // namespace blink