Better access to offline login flow from user pods

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 640 matching lines @@
         compositingContainerOffsetFromTransformedAncestor = compositingContainer->computeOffsetFromTransformedAncestor();
 
     LayoutRect totalSquashBounds;
     for (size_t i = 0; i < layers.size(); ++i) {
         LayoutRect squashedBounds = layers[i].paintLayer->boundingBoxForCompositing();
 
         // Store the local bounds of the Layer subtree before applying the offset.
         layers[i].compositedBounds = squashedBounds;
 
 #if DCHECK_IS_ON()
-        DCHECK(layers[i].paintLayer->transformAncestor() == commonTransformAncestor);
+//        DCHECK(layers[i].paintLayer->transformAncestor() == commonTransformAncestor);

[Greg Levin, 2016/08/31 16:52:06]

I don't intend to change this code.  I'm just making a note here because this is
DCHECKing about a second after the offline login flow switches to the password
page.  I'm investigating the cause.

 #endif
         LayoutPoint squashedLayerOffsetFromTransformedAncestor = layers[i].paintLayer->computeOffsetFromTransformedAncestor();
         LayoutSize squashedLayerOffsetFromCompositingContainer = squashedLayerOffsetFromTransformedAncestor - compositingContainerOffsetFromTransformedAncestor;
 
         squashedBounds.move(squashedLayerOffsetFromCompositingContainer);
         totalSquashBounds.unite(squashedBounds);
     }
 
     // The totalSquashBounds is positioned with respect to compositingContainer.
     // But the squashingLayer needs to be positioned with respect to the graphicsLayerParent.
@@ skipping 2031 matching lines @@
     } else if (graphicsLayer == m_scrollingContentsLayer.get()) {
         name = "Scrolling Contents Layer";
     } else {
         ASSERT_NOT_REACHED();
     }
 
     return name;
 }
 
 } // namespace blink