Partial implementation of inline StylePropertyMap.

third_party/WebKit/Source/core/dom/ElementRareData.cpp

Index: third_party/WebKit/Source/core/dom/ElementRareData.cpp
diff --git a/third_party/WebKit/Source/core/dom/ElementRareData.cpp b/third_party/WebKit/Source/core/dom/ElementRareData.cpp
index 762b596895a88c497aa5af53521bb0224cb57cb7..d0f695936288b82482d29216f89a95583022628a 100644
--- a/third_party/WebKit/Source/core/dom/ElementRareData.cpp
+++ b/third_party/WebKit/Source/core/dom/ElementRareData.cpp
@@ -29,6 +29,8 @@
  */
 
 #include "core/dom/ElementRareData.h"
+
+#include "core/css/cssom/InlineStylePropertyMap.h"
 #include "core/dom/CompositorProxiedPropertySet.h"
 #include "core/style/ComputedStyle.h"
 
@@ -39,7 +41,7 @@ struct SameSizeAsElementRareData : NodeRareData {
     LayoutSize sizeForResizing;
     IntSize scrollOffset;
     void* pointers[13];
-    Member<void*> persistentMember[2];
+    Member<void*> persistentMember[3];
 };
 
 CSSStyleDeclaration& ElementRareData::ensureInlineCSSStyleDeclaration(Element* ownerElement)
@@ -49,6 +51,14 @@ CSSStyleDeclaration& ElementRareData::ensureInlineCSSStyleDeclaration(Element* o
     return *m_cssomWrapper;
 }
 
+InlineStylePropertyMap& ElementRareData::ensureInlineStylePropertyMap(Element* ownerElement)
+{
+    if (!m_cssomMapWrapper) {
+        m_cssomMapWrapper = new InlineStylePropertyMap(ownerElement);
+    }
+    return *m_cssomMapWrapper;
+}
+
 AttrNodeList& ElementRareData::ensureAttrNodeList()
 {
     if (!m_attrNodeList)
@@ -65,6 +75,7 @@ DEFINE_TRACE_AFTER_DISPATCH(ElementRareData)
     visitor->trace(m_attrNodeList);
     visitor->trace(m_elementAnimations);
     visitor->trace(m_cssomWrapper);
+    visitor->trace(m_cssomMapWrapper);
     visitor->trace(m_customElementDefinition);
     visitor->trace(m_generatedBefore);
     visitor->trace(m_generatedAfter);