PrintContext::pageProperty() shouldn't use 0 as page height.

third_party/WebKit/Source/core/layout/LayoutView.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 223 matching lines @@
     return m_frameView->needsFullPaintInvalidation();
 }
 
 void LayoutView::layout()
 {
     if (!document().paginated())
         setPageLogicalHeight(0);
 
     if (shouldUsePrintingLayout()) {
         m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = logicalWidth();
-        // TODO(mstensho): Get rid of m_pageLogicalHeight zero check. Currently, pageProperty() in
-        // PrintContext starts printing with zero height, so we have to cope for now.
-        if (!m_fragmentationContext && m_pageLogicalHeight)
+        if (!m_fragmentationContext)
             m_fragmentationContext = adoptPtr(new ViewFragmentationContext(*this));
     } else if (m_fragmentationContext) {
         m_fragmentationContext.clear();
     }
 
     SubtreeLayoutScope layoutScope(*this);
 
     LayoutRect oldLayoutOverflowRect = layoutOverflowRect();
 
     // Use calcWidth/Height to get the new width/height, since this will take the full page zoom factor into account.
@@ skipping 749 matching lines @@
 }
 
 void LayoutView::sendMediaPositionChangeNotifications(const IntRect& visibleRect)
 {
     for (auto& media : m_mediaForPositionNotification) {
         media->notifyPositionMayHaveChanged(visibleRect);
     }
 }
 
 } // namespace blink