Revert of Sandbox html_viewer on Linux.

components/font_service/public/interfaces/font_service.mojom

-// Copyright 2014 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.
-
-module font_service;
-
-enum TypefaceStyle {
-  NORMAL = 0,
-  BOLD = 0x01,
-  ITALIC = 0x02,
-  BOLD_ITALIC = 0x03
-};
-
-// A reference to specific font on the font service.
-struct FontIdentity {
-  uint32 id;
-  int32 ttc_index;
-  // TODO(erg): So the string is supposed to be a path. However, the current
-  // chrome code goes out of its way to send this to the renderer process, and
-  // it is passed to blink, even though the openStream() IPC in chrome uses the
-  // id number instead. Do more investigation about what we need to do to plug
-  // this system path leak.
-  string str_representation;
-};
-
-// Loads and resolves fonts.
-//
-// We still need to load fonts from within a sandboxed process. We set
-// up a service to match fonts and load them,
-interface FontService {
-  // Returns the best match for |family_name| and |style|. On error, returns a
-  // null |identity|.
-  MatchFamilyName(string family_name, TypefaceStyle style) =>
-      (FontIdentity? identity, string family_name, TypefaceStyle style);
-
-  // Returns a handle to the raw font specified by |id_number|.
-  OpenStream(uint32 id_number) => (handle font_handle);
-};