[CSS Grid Layout] Implement 'justify-self' parsing

Source/core/rendering/style/RenderStyle.h

Index: Source/core/rendering/style/RenderStyle.h
diff --git a/Source/core/rendering/style/RenderStyle.h b/Source/core/rendering/style/RenderStyle.h
index 0d671bb54f8cf7f56c24c33a9d36eb7b8fd99233..b84a675522d81e1f4a343e721fc37515bf9d1861 100644
--- a/Source/core/rendering/style/RenderStyle.h
+++ b/Source/core/rendering/style/RenderStyle.h
@@ -765,6 +765,8 @@ public:
     bool isReverseFlexDirection() const { return flexDirection() == FlowRowReverse || flexDirection() == FlowColumnReverse; }
     EFlexWrap flexWrap() const { return static_cast<EFlexWrap>(rareNonInheritedData->m_flexibleBox->m_flexWrap); }
     EJustifyContent justifyContent() const { return static_cast<EJustifyContent>(rareNonInheritedData->m_justifyContent); }
+    JustifySelf justifySelf() const { return static_cast<JustifySelf>(rareNonInheritedData->m_justifySelf); }
+    JustifySelfOverflowAlignment justifySelfOverflowAlignment() const { return static_cast<JustifySelfOverflowAlignment>(rareNonInheritedData->m_justifySelfOverflowAlignment); }
 
     const Vector<GridTrackSize>& gridDefinitionColumns() const { return rareNonInheritedData->m_grid->m_gridDefinitionColumns; }
     const Vector<GridTrackSize>& gridDefinitionRows() const { return rareNonInheritedData->m_grid->m_gridDefinitionRows; }
@@ -1240,6 +1242,8 @@ public:
     void setFlexDirection(EFlexDirection direction) { SET_VAR(rareNonInheritedData.access()->m_flexibleBox, m_flexDirection, direction); }
     void setFlexWrap(EFlexWrap w) { SET_VAR(rareNonInheritedData.access()->m_flexibleBox, m_flexWrap, w); }
     void setJustifyContent(EJustifyContent p) { SET_VAR(rareNonInheritedData, m_justifyContent, p); }
+    void setJustifySelf(JustifySelf justifySelf) { SET_VAR(rareNonInheritedData, m_justifySelf, justifySelf); }
+    void setJustifySelfOverflowAlignment(JustifySelfOverflowAlignment overflowAlignment) { SET_VAR(rareNonInheritedData, m_justifySelfOverflowAlignment, overflowAlignment); }
     void setGridAutoColumns(const GridTrackSize& length) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridAutoColumns, length); }
     void setGridAutoRows(const GridTrackSize& length) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridAutoRows, length); }
     void setGridDefinitionColumns(const Vector<GridTrackSize>& lengths) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridDefinitionColumns, lengths); }
@@ -1603,6 +1607,8 @@ public:
     static EFlexDirection initialFlexDirection() { return FlowRow; }
     static EFlexWrap initialFlexWrap() { return FlexNoWrap; }
     static EJustifyContent initialJustifyContent() { return JustifyFlexStart; }
+    static JustifySelf initialJustifySelf() { return JustifySelfAuto; }
+    static JustifySelfOverflowAlignment initialJustifySelfOverflowAlignment() { return JustifySelfOverflowAlignmentDefault; }
     static int initialMarqueeLoopCount() { return -1; }
     static int initialMarqueeSpeed() { return 85; }
     static Length initialMarqueeIncrement() { return Length(6, Fixed); }