WebLocalFrameImpl::printPage needs to ensure layout, style, and compositing are up-to-date

Source/core/rendering/RenderLayer.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 464 matching lines @@
         // We should never be asking for this value when that is the case.
         ASSERT(m_needsDescendantDependentCompositingInputsUpdate == m_needsAncestorDependentCompositingInputsUpdate);
         return m_needsDescendantDependentCompositingInputsUpdate;
     }
 
     void updateAncestorDependentCompositingInputs(const AncestorDependentCompositingInputs&);
     void updateDescendantDependentCompositingInputs(const DescendantDependentCompositingInputs&);
     void didUpdateCompositingInputs();
 
     const AncestorDependentCompositingInputs& ancestorDependentCompositingInputs() const { ASSERT(!m_needsAncestorDependentCompositingInputsUpdate); return m_ancestorDependentCompositingInputs; }
-
-    // FIXME: This function should ASSERT(!m_needsDescendantDependentCompositingInputsUpdate).
-    const DescendantDependentCompositingInputs& descendantDependentCompositingInputs() const { return m_descendantDependentCompositingInputs; }
+    const DescendantDependentCompositingInputs& descendantDependentCompositingInputs() const { ASSERT(!m_needsDescendantDependentCompositingInputsUpdate); return m_descendantDependentCompositingInputs; }
 
     IntRect clippedAbsoluteBoundingBox() const { return ancestorDependentCompositingInputs().clippedAbsoluteBoundingBox; }
     const RenderLayer* opacityAncestor() const { return ancestorDependentCompositingInputs().opacityAncestor; }
     const RenderLayer* transformAncestor() const { return ancestorDependentCompositingInputs().transformAncestor; }
     const RenderLayer* filterAncestor() const { return ancestorDependentCompositingInputs().filterAncestor; }
     const RenderObject* clippingContainer() const { return ancestorDependentCompositingInputs().clippingContainer; }
     const RenderLayer* ancestorScrollingLayer() const { return ancestorDependentCompositingInputs().ancestorScrollingLayer; }
     RenderLayer* scrollParent() const { return const_cast<RenderLayer*>(ancestorDependentCompositingInputs().scrollParent); }
     RenderLayer* clipParent() const { return const_cast<RenderLayer*>(ancestorDependentCompositingInputs().clipParent); }
     bool isUnclippedDescendant() const { return ancestorDependentCompositingInputs().isUnclippedDescendant; }
@@ skipping 248 matching lines @@
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showLayerTree(const blink::RenderLayer*);
 void showLayerTree(const blink::RenderObject*);
 #endif
 
 #endif // RenderLayer_h