Initial implementation of GeometryMapper

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

Index: third_party/WebKit/Source/platform/graphics/paint/PropertyTreeState.h
diff --git a/third_party/WebKit/Source/platform/graphics/paint/PropertyTreeState.h b/third_party/WebKit/Source/platform/graphics/paint/PropertyTreeState.h
new file mode 100644
index 0000000000000000000000000000000000000000..6673ad3d1e8aa7effe80ca7a07217d8c026a42ea
--- /dev/null
+++ b/third_party/WebKit/Source/platform/graphics/paint/PropertyTreeState.h
@@ -0,0 +1,31 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.

[Xianzhu, 2016/06/22 23:20:30]

Nit: 2016

[wkorman, 2016/06/22 23:33:33]

2016?

[chrishtr, 2016/06/23 00:18:27]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef PropertyTreeState_h
+#define PropertyTreeState_h
+
+#include "wtf/HashFunctions.h"
+#include "wtf/HashTraits.h"
+
+namespace blink {
+
+class TransformPaintPropertyNode;
+class ClipPaintPropertyNode;
+class EffectPaintPropertyNode;
+
+struct PropertyTreeState {

[wkorman, 2016/06/22 23:33:33]

Worth adding a brief doc comment even if just noting it's a container for use
with GeometryMapper.

[chrishtr, 2016/06/23 00:18:27]

Done.

+    PropertyTreeState(
+        TransformPaintPropertyNode* transformArg,

[wkorman, 2016/06/22 23:33:33]

I think it's ok to name these without 'Arg' and they'll do the right thing in
the initializer list, see:

http://stackoverflow.com/a/6185043

[chrishtr, 2016/06/23 00:18:27]

Done.

+        ClipPaintPropertyNode* clipArg,
+        EffectPaintPropertyNode* effectArg)
+    : transform(transformArg), clip(clipArg), effect(effectArg) {}
+
+    TransformPaintPropertyNode* transform;
+    ClipPaintPropertyNode* clip;
+    EffectPaintPropertyNode* effect;
+};
+
+} // namespace blink
+
+#endif // PropertyTreeState_h