blob: b3bb90ae2da84619c38215570e88f42677c7d2b9 [file] [log] [blame]
// 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.
#include "base/files/file_path.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "chrome/utility/utility_message_handler.h"
namespace base {
class TaskRunner;
class Thread;
// Handles requests to build a static direct write font cache. Must be invoked
// in a non-sandboxed utility process. We build static font cache in utility
// process as it is time consuming as well as crash prone thing. We already
// have fall back of loading fonts from system fonts directory in place, so even
// if we fail to build static cache in utility process, chrome will still
// continue to run as is.
class FontCacheHandler : public UtilityMessageHandler {
~FontCacheHandler() override;
// IPC::Listener implementation
bool OnMessageReceived(const IPC::Message& message) override;
void OnBuildFontCache(const base::FilePath& full_path);
void StartBuildingFontCache(const base::FilePath& full_path);
void Cleanup();
scoped_refptr<base::TaskRunner> utility_task_runner_;
// Thread that caching process runs on, while FontCacheHandler handles
// messages from the browser process.
scoped_ptr<base::Thread> cache_thread_;