MacViews: Implement Force Touch/Mac dictionary lookup for Textfields.

ui/gfx/decorated_text.cc

Index: ui/gfx/decorated_text.cc
diff --git a/ui/gfx/decorated_text.cc b/ui/gfx/decorated_text.cc
new file mode 100644
index 0000000000000000000000000000000000000000..8c7a3299bd9323d613a6b6889ad11048f27b243a
--- /dev/null
+++ b/ui/gfx/decorated_text.cc
@@ -0,0 +1,17 @@
+// 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.
+
+#include "ui/gfx/decorated_text.h"
+
+namespace gfx {
+
+DecoratedText::RangedAttribute::RangedAttribute(const gfx::Range& range,
+                                                const gfx::Font& font)
+    : range(range), font(font), strike(false), diagonal_strike(false) {}
+
+DecoratedText::DecoratedText() {}
+
+DecoratedText::~DecoratedText() {}
+
+}  // namespace gfx