[SPv2] Respect transform-style in the Blink and cc property trees.

third_party/WebKit/Source/platform/graphics/paint/TransformPaintPropertyNode.h

Index: third_party/WebKit/Source/platform/graphics/paint/TransformPaintPropertyNode.h
diff --git a/third_party/WebKit/Source/platform/graphics/paint/TransformPaintPropertyNode.h b/third_party/WebKit/Source/platform/graphics/paint/TransformPaintPropertyNode.h
index 03980087c1c8c198b83549a2574fbd84142fa8b2..bb36f4e0460fde3d38e710902a2af91a235aa82a 100644
--- a/third_party/WebKit/Source/platform/graphics/paint/TransformPaintPropertyNode.h
+++ b/third_party/WebKit/Source/platform/graphics/paint/TransformPaintPropertyNode.h
@@ -21,9 +21,14 @@ namespace blink {
 // for the root.
 class PLATFORM_EXPORT TransformPaintPropertyNode : public RefCounted<TransformPaintPropertyNode> {
 public:
-    static PassRefPtr<TransformPaintPropertyNode> create(const TransformationMatrix& matrix, const FloatPoint3D& origin, PassRefPtr<TransformPaintPropertyNode> parent = nullptr)
+    static PassRefPtr<TransformPaintPropertyNode> create(
+        const TransformationMatrix& matrix,
+        const FloatPoint3D& origin,
+        PassRefPtr<TransformPaintPropertyNode> parent = nullptr,
+        bool flattensInheritedTransform = false,
+        unsigned renderingContextID = 0)
     {
-        return adoptRef(new TransformPaintPropertyNode(matrix, origin, parent));
+        return adoptRef(new TransformPaintPropertyNode(matrix, origin, parent, flattensInheritedTransform, renderingContextID));
     }
 
     const TransformationMatrix& matrix() const { return m_matrix; }
@@ -33,14 +38,36 @@ public:
     // is the root transform.
     TransformPaintPropertyNode* parent() const { return m_parent.get(); }
 
-private:
+    // If true, content with this transform node (or its descendant) appears in
+    // the plane of its parent. This is implemented by flattening the total
+    // accumulated transform from its ancestors.
+    bool flattensInheritedTransform() const { return m_flattensInheritedTransform; }
+
+    // Content whose transform nodes have a common rendering context ID are 3D
+    // sorted. If this is 0, content will not be 3D sorted.
+    unsigned renderingContextID() const { return m_renderingContextID; }
+    bool hasRenderingContext() const { return m_renderingContextID; }
 
-    TransformPaintPropertyNode(const TransformationMatrix& matrix, const FloatPoint3D& origin, PassRefPtr<TransformPaintPropertyNode> parent)
-        : m_matrix(matrix), m_origin(origin), m_parent(parent) { }
+private:
+    TransformPaintPropertyNode(
+        const TransformationMatrix& matrix,
+        const FloatPoint3D& origin,
+        PassRefPtr<TransformPaintPropertyNode> parent,
+        bool flattensInheritedTransform,
+        unsigned renderingContextID)
+        : m_matrix(matrix)
+        , m_origin(origin)
+        , m_parent(parent)
+        , m_flattensInheritedTransform(flattensInheritedTransform)
+        , m_renderingContextID(renderingContextID)
+    {
+    }
 
     const TransformationMatrix m_matrix;
     const FloatPoint3D m_origin;
-    RefPtr<TransformPaintPropertyNode> m_parent;
+    const RefPtr<TransformPaintPropertyNode> m_parent;
+    const bool m_flattensInheritedTransform;
+    const unsigned m_renderingContextID;
 };
 
 // Redeclared here to avoid ODR issues.