Clamp shape-margin to zero

Source/core/css/StylePropertySet.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008, 2012 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 97 matching lines @@
 
     PassRefPtrWillBeRawPtr<MutableStylePropertySet> mutableCopy() const;
     PassRefPtrWillBeRawPtr<ImmutableStylePropertySet> immutableCopyIfNeeded() const;
 
     PassRefPtrWillBeRawPtr<MutableStylePropertySet> copyPropertiesInSet(const Vector<CSSPropertyID>&) const;
 
     String asText() const;
 
     bool isMutable() const { return m_isMutable; }
 
+    bool forceOverride() const { return m_forceOverride; }

[leviw_travelin_and_unemployed, 2015/04/21 22:58:41]

Do you mean to include this stuff? Is it necessary?

+    void setForceOverride(bool b) { m_forceOverride = b; }
+
     bool hasFailedOrCanceledSubresources() const;
 
     static unsigned averageSizeInBytes();
 
 #ifndef NDEBUG
     void showStyle();
 #endif
 
     bool propertyMatches(CSSPropertyID, const CSSValue*) const;
 
     DECLARE_TRACE();
     DEFINE_INLINE_TRACE_AFTER_DISPATCH() { }
 
 protected:
 
-    enum { MaxArraySize = (1 << 28) - 1 };
+    enum { MaxArraySize = (1 << 27) - 1 };
 
     StylePropertySet(CSSParserMode cssParserMode)
         : m_cssParserMode(cssParserMode)
         , m_isMutable(true)
+        , m_forceOverride(false)
         , m_arraySize(0)
     { }
 
     StylePropertySet(CSSParserMode cssParserMode, unsigned immutableArraySize)
         : m_cssParserMode(cssParserMode)
         , m_isMutable(false)
+        , m_forceOverride(false)
         , m_arraySize(std::min(immutableArraySize, unsigned(MaxArraySize)))
     { }
 
     unsigned m_cssParserMode : 3;
     mutable unsigned m_isMutable : 1;
-    unsigned m_arraySize : 28;
+    mutable unsigned m_forceOverride : 1;
+    unsigned m_arraySize : 27;
 
     friend class PropertySetCSSStyleDeclaration;
 };
 
 class ImmutableStylePropertySet : public StylePropertySet {
 public:
     ~ImmutableStylePropertySet();
     static PassRefPtrWillBeRawPtr<ImmutableStylePropertySet> create(const CSSProperty* properties, unsigned count, CSSParserMode);
 
     unsigned propertyCount() const { return m_arraySize; }
@@ skipping 138 matching lines @@
 inline int StylePropertySet::findPropertyIndex(CSSPropertyID propertyID) const
 {
     if (m_isMutable)
         return toMutableStylePropertySet(this)->findPropertyIndex(propertyID);
     return toImmutableStylePropertySet(this)->findPropertyIndex(propertyID);
 }
 
 } // namespace blink
 
 #endif // StylePropertySet_h