Oilpan: Decrease sizeof(Node) by 8 byte

Source/core/dom/Node.cpp

Index: Source/core/dom/Node.cpp
diff --git a/Source/core/dom/Node.cpp b/Source/core/dom/Node.cpp
index 6cb9f35f4a68f03d5a4fde44829c03c71e8df83c..e3d98ed2b40e445588aef03fba92353a41bf8433 100644
--- a/Source/core/dom/Node.cpp
+++ b/Source/core/dom/Node.cpp
@@ -99,7 +99,9 @@ namespace blink {
 using namespace HTMLNames;
 
 struct SameSizeAsNode : NODE_BASE_CLASSES {
+#if !(ENABLE(OILPAN) && USE_4BYTE_HEADER_PADDING)
     uint32_t m_nodeFlags;
+#endif
     void* m_pointer[5];
 };
 
@@ -256,12 +258,12 @@ void Node::trackForDebugging()
 }
 
 Node::Node(TreeScope* treeScope, ConstructionType type)
-    : m_nodeFlags(type)
-    , m_parentOrShadowHostNode(nullptr)
+    : m_parentOrShadowHostNode(nullptr)
     , m_treeScope(treeScope)
     , m_previous(nullptr)
     , m_next(nullptr)
 {
+    NODE_FLAGS = type;
     ASSERT(m_treeScope || type == CreateDocument || type == CreateShadowRoot);
 #if !ENABLE(OILPAN)
     if (m_treeScope)
@@ -706,7 +708,7 @@ void Node::markAncestorsWithChildNeedsDistributionRecalc()
 
 inline void Node::setStyleChange(StyleChangeType changeType)
 {
-    m_nodeFlags = (m_nodeFlags & ~StyleChangeMask) | changeType;
+    NODE_FLAGS = (NODE_FLAGS & ~StyleChangeMask) | changeType;
 }
 
 void Node::markAncestorsWithChildNeedsStyleRecalc()
@@ -743,7 +745,7 @@ void Node::setNeedsStyleRecalc(StyleChangeType changeType, const StyleChangeReas
 
 void Node::clearNeedsStyleRecalc()
 {
-    m_nodeFlags &= ~StyleChangeMask;
+    NODE_FLAGS &= ~StyleChangeMask;
 
     clearSVGFilterNeedsLayerUpdate();