Implement Harmony typography spec.

chrome/browser/ui/views/harmony/harmony_typography_provider.h

Index: chrome/browser/ui/views/harmony/harmony_typography_provider.h
diff --git a/chrome/browser/ui/views/harmony/harmony_typography_provider.h b/chrome/browser/ui/views/harmony/harmony_typography_provider.h
new file mode 100644
index 0000000000000000000000000000000000000000..7885f2ceed8e30140ce11ee38abdd4cb693f4caa
--- /dev/null
+++ b/chrome/browser/ui/views/harmony/harmony_typography_provider.h
@@ -0,0 +1,25 @@
+// Copyright 2017 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 CHROME_BROWSER_UI_VIEWS_HARMONY_HARMONY_TYPOGRAPHY_PROVIDER_H_
+#define CHROME_BROWSER_UI_VIEWS_HARMONY_HARMONY_TYPOGRAPHY_PROVIDER_H_
+
+#include "base/macros.h"
+#include "ui/views/style/typography_provider.h"
+
+// TypographyProvider implementing the Harmony spec.
+class HarmonyTypographyProvider : public views::TypographyProvider {
+ public:
+  HarmonyTypographyProvider() = default;
+
+  // TypographyProvider:
+  const gfx::FontList& GetFont(int text_context, int text_style) const override;
+  SkColor GetColor(int context, int style) const override;
+  int GetLineHeight(int context, int style) const override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(HarmonyTypographyProvider);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_HARMONY_HARMONY_TYPOGRAPHY_PROVIDER_H_