[css-sizing] Ensure positive available size on replaced elements

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011-2012. 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.
@@ skipping 805 matching lines @@
   minLogicalWidth = maxLogicalWidth = intrinsicLogicalWidth();
 }
 
 void LayoutReplaced::computePreferredLogicalWidths() {
   ASSERT(preferredLogicalWidthsDirty());
 
   // We cannot resolve some logical width here (i.e. percent, fill-available or
   // fit-content) as the available logical width may not be set on our
   // containing block.
   const Length& logicalWidth = style()->logicalWidth();
-  if (logicalWidth.isPercentOrCalc() || logicalWidth.isFillAvailable() ||
-      logicalWidth.isFitContent())
+  if (logicalWidth.isLayoutDependent() ||
+      (logicalWidth.isAuto() &&
+       (style()->logicalMinWidth().isLayoutDependent() ||
+        style()->logicalMaxWidth().isLayoutDependent())))
     computeIntrinsicLogicalWidths(m_minPreferredLogicalWidth,
                                   m_maxPreferredLogicalWidth);
   else
     m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth =
         computeReplacedLogicalWidth(ComputePreferred);
 
   const ComputedStyle& styleToUse = styleRef();
-  if (styleToUse.logicalWidth().isPercentOrCalc() ||
-      styleToUse.logicalMaxWidth().isPercentOrCalc())
+  if (styleToUse.logicalWidth().isLayoutDependent() ||
+      styleToUse.logicalMaxWidth().isLayoutDependent())
     m_minPreferredLogicalWidth = LayoutUnit();
 
   if (styleToUse.logicalMinWidth().isFixed() &&
       styleToUse.logicalMinWidth().value() > 0) {
     m_maxPreferredLogicalWidth = std::max(
         m_maxPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(
                                         styleToUse.logicalMinWidth().value()));
     m_minPreferredLogicalWidth = std::max(
         m_minPreferredLogicalWidth, adjustContentBoxLogicalWidthForBoxSizing(
                                         styleToUse.logicalMinWidth().value()));
@@ skipping 91 matching lines @@
     inlineBoxWrapper()->root().setHasSelectedChildren(state != SelectionNone);
 }
 
 void LayoutReplaced::IntrinsicSizingInfo::transpose() {
   size = size.transposedSize();
   aspectRatio = aspectRatio.transposedSize();
   std::swap(hasWidth, hasHeight);
 }
 
 }  // namespace blink