[CSS Grid Layout] Rename grid-{rows|columns} to grid-definition-{rows|columns}

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 ebdd80e54b4d7de2e8056366000d6ccc56b59c5b..bd03745c87a50a0a306bd672e6392a9d6c0d138f 100644
--- a/Source/core/rendering/style/RenderStyle.h
+++ b/Source/core/rendering/style/RenderStyle.h
@@ -739,8 +739,8 @@ public:
     EFlexWrap flexWrap() const { return static_cast<EFlexWrap>(rareNonInheritedData->m_flexibleBox->m_flexWrap); }
     EJustifyContent justifyContent() const { return static_cast<EJustifyContent>(rareNonInheritedData->m_justifyContent); }
 
-    const Vector<GridTrackSize>& gridColumns() const { return rareNonInheritedData->m_grid->m_gridColumns; }
-    const Vector<GridTrackSize>& gridRows() const { return rareNonInheritedData->m_grid->m_gridRows; }
+    const Vector<GridTrackSize>& gridDefinitionColumns() const { return rareNonInheritedData->m_grid->m_gridDefinitionColumns; }
+    const Vector<GridTrackSize>& gridDefinitionRows() const { return rareNonInheritedData->m_grid->m_gridDefinitionRows; }
     const NamedGridLinesMap& namedGridColumnLines() const { return rareNonInheritedData->m_grid->m_namedGridColumnLines; }
     const NamedGridLinesMap& namedGridRowLines() const { return rareNonInheritedData->m_grid->m_namedGridRowLines; }
     GridAutoFlow gridAutoFlow() const { return rareNonInheritedData->m_grid->m_gridAutoFlow; }
@@ -1190,8 +1190,8 @@ public:
     void setJustifyContent(EJustifyContent p) { SET_VAR(rareNonInheritedData, m_justifyContent, p); }
     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 setGridColumns(const Vector<GridTrackSize>& lengths) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridColumns, lengths); }
-    void setGridRows(const Vector<GridTrackSize>& lengths) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridRows, lengths); }
+    void setGridDefinitionColumns(const Vector<GridTrackSize>& lengths) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridDefinitionColumns, lengths); }
+    void setGridDefinitionRows(const Vector<GridTrackSize>& lengths) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridDefinitionRows, lengths); }
     void setNamedGridColumnLines(const NamedGridLinesMap& namedGridColumnLines) { SET_VAR(rareNonInheritedData.access()->m_grid, m_namedGridColumnLines, namedGridColumnLines); }
     void setNamedGridRowLines(const NamedGridLinesMap& namedGridRowLines) { SET_VAR(rareNonInheritedData.access()->m_grid, m_namedGridRowLines, namedGridRowLines); }
     void setGridAutoFlow(GridAutoFlow flow) { SET_VAR(rareNonInheritedData.access()->m_grid, m_gridAutoFlow, flow); }
@@ -1595,8 +1595,8 @@ public:
     static TouchAction initialTouchAction() { return TouchActionAuto; }
 
     // The initial value is 'none' for grid tracks.
-    static Vector<GridTrackSize> initialGridColumns() { return Vector<GridTrackSize>(); }
-    static Vector<GridTrackSize> initialGridRows() { return Vector<GridTrackSize>(); }
+    static Vector<GridTrackSize> initialGridDefinitionColumns() { return Vector<GridTrackSize>(); }
+    static Vector<GridTrackSize> initialGridDefinitionRows() { return Vector<GridTrackSize>(); }
 
     static GridAutoFlow initialGridAutoFlow() { return AutoFlowNone; }