[MD settings] adding c++ side of font settings

chrome/browser/ui/webui/settings/settings_font_handler.h

+// Copyright 2015 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_WEBUI_SETTINGS_SETTINGS_FONT_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_SETTINGS_SETTINGS_FONT_HANDLER_H_
+

[Dan Beam, 2015/10/15 02:34:41]

#include "base/macros.h"

i'm gonna write a presubmit about this, tired of saying it for everybody

[dschuyler, 2015/10/15 21:54:20]

Done.

[Dan Beam, 2015/10/15 23:33:17]

also Done: https://codereview.chromium.org/1411553003/

[dschuyler, 2015/10/24 01:03:48]

Acknowledged.

+#include "base/memory/scoped_ptr.h"
+#include "base/prefs/pref_member.h"
+#include "chrome/browser/ui/webui/settings/md_settings_ui.h"
+
+namespace base {
+class ListValue;
+}
+
+namespace content {
+class WebUI;
+}
+
+namespace settings {
+
+// Handle OS font list, font preference settings and character encoding.
+class SettingsFontHandler : public SettingsPageUIHandler {
+ public:
+  explicit SettingsFontHandler(content::WebUI* webui);
+  ~SettingsFontHandler() override;
+
+  // SettingsPageUIHandler implementation.
+  void RegisterMessages() override;
+
+ private:
+  // Handler for script asking for font information.
+  void HandleFetchFontsData(const base::ListValue* args);
+
+  // Callback to handle fonts loading.
+  void FontListHasLoaded(scoped_ptr<base::ListValue> list);
+
+  // Values used to update current settings when lists load.
+  StringPrefMember standard_font_;
+  StringPrefMember serif_font_;
+  StringPrefMember sans_serif_font_;
+  StringPrefMember fixed_font_;
+  StringPrefMember font_encoding_;
+
+  DISALLOW_COPY_AND_ASSIGN(SettingsFontHandler);
+};
+
+}  // namespace settings
+
+#endif  // CHROME_BROWSER_UI_WEBUI_SETTINGS_SETTINGS_FONT_HANDLER_H_