[LayoutNG] Introduce NGPhysicalFragment and make NGFragment a 'view'

third_party/WebKit/Source/core/layout/ng/ng_direction.h

Index: third_party/WebKit/Source/core/layout/ng/ng_direction.h
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_direction.h b/third_party/WebKit/Source/core/layout/ng/ng_direction.h
new file mode 100644
index 0000000000000000000000000000000000000000..f4e76c81e579cdc36a23f23c1e4c4db4cdf4b3fd
--- /dev/null
+++ b/third_party/WebKit/Source/core/layout/ng/ng_direction.h
@@ -0,0 +1,19 @@
+// 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 NGDirection_h
+#define NGDirection_h
+
+#include "core/CoreExport.h"
+#include "platform/text/TextDirection.h"
+
+namespace blink {
+
+enum NGDirection { LeftToRight = 0, RightToLeft = 1 };
+
+CORE_EXPORT NGDirection FromPlatformDirection(TextDirection);
+
+}  // namespace blink
+
+#endif  // NGDirection_h