[Slimming Paint] Allow 3D transforms of different types.

Source/platform/graphics/paint/DisplayItem.h

Index: Source/platform/graphics/paint/DisplayItem.h
diff --git a/Source/platform/graphics/paint/DisplayItem.h b/Source/platform/graphics/paint/DisplayItem.h
index dafb3a9131d6abccbe346232ac4b9eab112a49bd..820c6198f4a4f097b4952220e85cfcbe1a594f3d 100644
--- a/Source/platform/graphics/paint/DisplayItem.h
+++ b/Source/platform/graphics/paint/DisplayItem.h
@@ -123,14 +123,18 @@ public:
         EndScrollFirst,
         EndScrollLast = EndScrollFirst + ScrollLast - ScrollFirst,
 
+        Transform3DFirst,
+        Transform3DElementTransform = Transform3DFirst,
+        Transform3DLast = Transform3DElementTransform,
+        EndTransform3DFirst,
+        EndTransform3DLast = EndTransform3DFirst + Transform3DLast - Transform3DFirst,
+
         BeginFilter,
         EndFilter,
         BeginCompositing,
         EndCompositing,
         BeginTransform,
         EndTransform,
-        BeginTransform3D,
-        EndTransform3D,
         BeginClipPath,
         EndClipPath,
 
@@ -222,6 +226,8 @@ public:
     DEFINE_PAIRED_CATEGORY_METHODS(Scroll, scroll)
     DEFINE_PAINT_PHASE_CONVERSION_METHOD(Scroll)
 
+    DEFINE_PAIRED_CATEGORY_METHODS(Transform3D, transform3D);
+
     DEFINE_CATEGORY_METHODS(SubtreeCached)
     DEFINE_PAINT_PHASE_CONVERSION_METHOD(SubtreeCached)
     DEFINE_CATEGORY_METHODS(BeginSubtree)