"Bootstrap" a toolkit-views Typography spec.

ui/views/style/typography.cc

+// 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.
+
+#include "ui/views/style/typography.h"
+
+#include "base/logging.h"
+#include "ui/views/style/typography_provider.h"
+#include "ui/views/views_delegate.h"
+
+namespace views {
+namespace style {
+namespace {
+
+void ValidateContextAndStyle(int text_context, int text_style) {
+  DCHECK_GE(text_context, VIEWS_TEXT_CONTEXT_START);
+  DCHECK_LT(text_context, TEXT_CONTEXT_MAX);
+  DCHECK_GE(text_style, VIEWS_TEXT_STYLE_START);
+}
+
+}  // namespace
+
+const gfx::FontList& GetFont(int text_context, int text_style) {
+  ValidateContextAndStyle(text_context, text_style);
+  return ViewsDelegate::GetInstance()->GetTypographyProvider().GetFont(
+      text_context, text_style);
+}
+
+SkColor GetColor(int text_context, int text_style) {
+  ValidateContextAndStyle(text_context, text_style);
+  return ViewsDelegate::GetInstance()->GetTypographyProvider().GetColor(
+      text_context, text_style);
+}
+
+int GetLineHeight(int text_context, int text_style) {
+  ValidateContextAndStyle(text_context, text_style);
+  return ViewsDelegate::GetInstance()->GetTypographyProvider().GetLineHeight(
+      text_context, text_style);
+}
+
+}  // namespace style
+}  // namespace views