CSS Independent Transform Properties

Source/core/style/StyleTransformData.cpp

Index: Source/core/style/StyleTransformData.cpp
diff --git a/Source/core/style/StyleTransformData.cpp b/Source/core/style/StyleTransformData.cpp
index f9f35a5780f5b2d2499175884d2824d24dfc5b6d..2882ce567dd21ef5eb45c5ea8d5da37fef3a4cb8 100644
--- a/Source/core/style/StyleTransformData.cpp
+++ b/Source/core/style/StyleTransformData.cpp
@@ -23,6 +23,7 @@
 #include "core/style/StyleTransformData.h"
 
 #include "core/style/ComputedStyle.h"
+#include "core/style/DataEquivalency.h"
 
 namespace blink {
 
@@ -38,12 +39,28 @@ StyleTransformData::StyleTransformData(const StyleTransformData& o)
     , m_operations(o.m_operations)
     , m_origin(o.m_origin)
     , m_motion(o.m_motion)
+    , m_translate(o.m_translate)
+    , m_rotate(o.m_rotate)
+    , m_scale(o.m_scale)
 {
 }
 
 bool StyleTransformData::operator==(const StyleTransformData& o) const
 {
-    return m_origin == o.m_origin && m_operations == o.m_operations && m_motion == o.m_motion;
+    return m_origin == o.m_origin
+        && m_operations == o.m_operations
+        && m_motion == o.m_motion
+        && dataEquivalent<TransformOperation>(m_translate, o.m_translate)
+        && dataEquivalent<TransformOperation>(m_rotate, o.m_rotate)
+        && dataEquivalent<TransformOperation>(m_scale, o.m_scale);
+}
+
+bool StyleTransformData::has3DTransform() const
+{
+    return m_operations.has3DOperation()
+        || (m_translate && m_translate->z() != 0)
+        || (m_rotate && (m_rotate->x() != 0 || m_rotate->y() != 0))
+        || (m_scale && m_scale->z() != 1);
 }
 
 } // namespace blink