Clamp shape-margin to zero

Source/core/css/StylePropertySet.h

Index: Source/core/css/StylePropertySet.h
diff --git a/Source/core/css/StylePropertySet.h b/Source/core/css/StylePropertySet.h
index 528bf865e715b8f637edf3cc13d6440d45425916..c11414658dcbdadfb1281b77ae286e9ed41cb08d 100644
--- a/Source/core/css/StylePropertySet.h
+++ b/Source/core/css/StylePropertySet.h
@@ -115,6 +115,9 @@ public:
 
     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();
@@ -130,23 +133,26 @@ public:
 
 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;
 };