CSS Typed OM: Add TranslationTransformComponent

third_party/WebKit/Source/core/css/cssom/TranslationTransformComponent.h

Index: third_party/WebKit/Source/core/css/cssom/TranslationTransformComponent.h
diff --git a/third_party/WebKit/Source/core/css/cssom/TranslationTransformComponent.h b/third_party/WebKit/Source/core/css/cssom/TranslationTransformComponent.h
new file mode 100644
index 0000000000000000000000000000000000000000..3531def2f322b2e875e7fede707d93248f5890f7
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/cssom/TranslationTransformComponent.h
@@ -0,0 +1,61 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef TranslationTransformComponent_h
+#define TranslationTransformComponent_h
+
+#include "core/css/cssom/LengthValue.h"
+#include "core/css/cssom/TransformComponent.h"
+
+namespace blink {
+
+class ExceptionState;
+
+class CORE_EXPORT TranslationTransformComponent final : public TransformComponent {
+    WTF_MAKE_NONCOPYABLE(TranslationTransformComponent);
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    static TranslationTransformComponent* create(LengthValue* x, LengthValue* y, ExceptionState&)
+    {
+        return new TranslationTransformComponent(x, y, nullptr);
+    }
+    static TranslationTransformComponent* create(LengthValue* x, LengthValue* y, LengthValue* z, ExceptionState&);
+
+    LengthValue* x() const { return m_x; }
+    LengthValue* y() const { return m_y; }
+    LengthValue* z() const { return m_z; }
+
+    TransformComponentType type() const override { return is2D() ? TranslationType : Translation3DType; }
+
+    // TODO: Implement asMatrix for TranslationTransformComponent.
+    MatrixTransformComponent* asMatrix() const override { return nullptr; }
+
+    PassRefPtrWillBeRawPtr<CSSFunctionValue> toCSSValue() const override;
+
+    DEFINE_INLINE_VIRTUAL_TRACE()
+    {
+        visitor->trace(m_x);
+        visitor->trace(m_y);
+        visitor->trace(m_z);
+        TransformComponent::trace(visitor);
+    }
+
+private:
+    TranslationTransformComponent(LengthValue* x, LengthValue* y, LengthValue* z)
+        : TransformComponent()
+        , m_x(x)
+        , m_y(y)
+        , m_z(z)
+    { }
+
+    bool is2D() const { return !m_z; }
+
+    Member<LengthValue> m_x;
+    Member<LengthValue> m_y;
+    Member<LengthValue> m_z;
+};
+
+} // namespace blink
+
+#endif