chrome/utility/font_cache_handler_win.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_UTILITY_FONT_CACHE_HANDLER_WIN_H_
   6 #define CHROME_UTILITY_FONT_CACHE_HANDLER_WIN_H_
   7
   8 #include "base/files/file_path.h"
   9 #include "chrome/utility/utility_message_handler.h"
  10
  11 // Handles requests to build a static direct write font cache. Must be invoked
  12 // in a non-sandboxed utility process. We build static font cache in utility
  13 // process as it is time consuming as well as crash prone thing. We already
  14 // have fall back of loading fonts from system fonts directory in place, so even
  15 // if we fail to build static cache in utility process, chrome will still
  16 // continue to run as is.
  17 class FontCacheHandler : public UtilityMessageHandler {
  18  public:
  19   FontCacheHandler() {}
  20   virtual ~FontCacheHandler() {}
  21
  22   // IPC::Listener implementation
  23   virtual bool OnMessageReceived(const IPC::Message& message) override;
  24
  25  private:
  26   void OnBuildFontCache(const base::FilePath& full_path);
  27
  28   DISALLOW_COPY_AND_ASSIGN(FontCacheHandler);
  29 };
  30
  31 #endif  // CHROME_UTILITY_FONT_CACHE_HANDLER_WIN_H_