Revert of Sandbox html_viewer on Linux.

components/font_service/public/cpp/font_loader.cc

-// 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.
-
-#include "components/font_service/public/cpp/font_loader.h"
-
-#include "components/font_service/public/cpp/font_service_thread.h"
-#include "mojo/application/public/cpp/application_impl.h"
-
-namespace font_service {
-
-FontLoader::FontLoader(mojo::ApplicationImpl* application_impl) {
-  mojo::URLRequestPtr request(mojo::URLRequest::New());
-  request->url = mojo::String::From("mojo:font_service");
-  FontServicePtr font_service;
-  application_impl->ConnectToService(request.Pass(), &font_service);
-
-  thread_ = new internal::FontServiceThread(font_service.Pass());
-}
-
-FontLoader::~FontLoader() {}
-
-bool FontLoader::matchFamilyName(const char family_name[],
-                                 SkTypeface::Style requested,
-                                 FontIdentity* out_font_identifier,
-                                 SkString* out_family_name,
-                                 SkTypeface::Style* out_style) {
-  return thread_->MatchFamilyName(family_name, requested, out_font_identifier,
-                                  out_family_name, out_style);
-}
-
-SkStreamAsset* FontLoader::openStream(const FontIdentity& identity) {
-  {
-    base::AutoLock lock(lock_);
-    auto mapped_font_files_it = mapped_font_files_.find(identity.fID);
-    if (mapped_font_files_it != mapped_font_files_.end())
-      return mapped_font_files_it->second->CreateMemoryStream();
-  }
-
-  scoped_refptr<internal::MappedFontFile> mapped_font_file =
-      thread_->OpenStream(identity);
-  if (!mapped_font_file)
-    return nullptr;
-
-  // Get notified with |mapped_font_file| is destroyed.
-  mapped_font_file->set_observer(this);
-
-  {
-    base::AutoLock lock(lock_);
-    auto mapped_font_files_it =
-        mapped_font_files_.insert(std::make_pair(mapped_font_file->font_id(),
-                                                 mapped_font_file.get()))
-            .first;
-    return mapped_font_files_it->second->CreateMemoryStream();
-  }
-}
-
-void FontLoader::OnMappedFontFileDestroyed(internal::MappedFontFile* f) {
-  base::AutoLock lock(lock_);
-  mapped_font_files_.erase(f->font_id());
-}
-
-}  // namespace font_service