[MacViews] Implemented text context menu

ui/gfx/decorated_text_mac.h

Index: ui/gfx/decorated_text_mac.h
diff --git a/ui/gfx/decorated_text_mac.h b/ui/gfx/decorated_text_mac.h
new file mode 100644
index 0000000000000000000000000000000000000000..5f320822dadadb1f26a16321ac2e70e2d7d88452
--- /dev/null
+++ b/ui/gfx/decorated_text_mac.h
@@ -0,0 +1,22 @@
+// 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 UI_GFX_DECORATED_TEXT_MAC_H_
+#define UI_GFX_DECORATED_TEXT_MAC_H_
+
+#include "ui/gfx/gfx_export.h"
+
+@class NSAttributedString;
+
+namespace gfx {
+
+struct DecoratedText;
+
+// Returns a NSAttributedString from |decorated_text|.

[msw, 2017/01/26 20:59:16]

optional nit: I'd potentially put this in decorated_text.h as
DecoratedText::ToNSAttributedString() like CGPoint stuff in ui/gfx/point.*

[spqchan, 2017/02/01 00:32:38]

Acknowledged.

+GFX_EXPORT NSAttributedString* GetAttributedStringFromDecoratedText(
+    const DecoratedText& decorated_text);
+
+}  // namespace gfx
+
+#endif  // UI_GFX_DECORATED_TEXT_MAC_H_