chrome/common/component_flash_hint_file_linux.h

   1 // Copyright 2015 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_COMMON_COMPONENT_FLASH_HINT_FILE_LINUX_H_
   6 #define CHROME_COMMON_COMPONENT_FLASH_HINT_FILE_LINUX_H_
   7
   8 #include "build/build_config.h"
   9
  10 #if !defined(OS_LINUX)
  11 #error "This file only applies to the Linux component update of Flash."
  12 #endif  // !defined(OS_LINUX)
  13
  14 #include <string>
  15
  16 namespace base {
  17 class FilePath;
  18 }
  19
  20 // The APIs in this namespace wraps the component updated flash hint file, which
  21 // lives inside the PepperFlash folder of  the user-data-dir, so that the Linux
  22 // zygote process can preload the right version of flash.
  23 namespace component_flash_hint_file {
  24
  25 // Records a new flash update into the hint file.
  26 // |unpacked_plugin| is the current location of the plugin.
  27 // |moved_plugin| is the location where the plugin will be loaded from.
  28 bool RecordFlashUpdate(const base::FilePath& unpacked_plugin,
  29                        const base::FilePath& moved_plugin,
  30                        const std::string& version);
  31
  32 // Reports whether or not a hints file exists.
  33 bool DoesHintFileExist();
  34
  35 // Return the path of the component updated flash plugin, only if the file has
  36 // the correct hash sum.
  37 // |path| will be populated with the path to the flash plugin.
  38 // |version| will be populated with the version of the flash plugin.
  39 bool VerifyAndReturnFlashLocation(base::FilePath* path, std::string* version);
  40
  41 // Test if the specified plugin file can be mapped executable.
  42 // This is useful to test if the flash plugin is in a directory mounted
  43 // noexec, in which case Chrome will not be able to load and use the plugin.
  44 // |path| is the path of the flash plugin that will mapped executable.
  45 bool TestExecutableMapping(const base::FilePath& path);
  46
  47 }  // namespace component_flash_hint_file
  48
  49 #endif  // CHROME_COMMON_COMPONENT_FLASH_HINT_FILE_LINUX_H_