The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/1929bb230afca9fd8958133bbbe948edbd28aa05

commit 1929bb230afca9fd8958133bbbe948edbd28aa05
Author: thomasanderson <thomasanderson@google.com>
Date: Fri Jun 24 02:01:00 2016

Add base::ExecutableExistsInPath

BUG= 622021 

Review-Url: https://codereview.chromium.org/2086103002
Cr-Commit-Position: refs/heads/master@{#401783}

[modify] https://crrev.com/1929bb230afca9fd8958133bbbe948edbd28aa05/base/files/file_util.h
[modify] https://crrev.com/1929bb230afca9fd8958133bbbe948edbd28aa05/base/files/file_util_posix.cc
[modify] https://crrev.com/1929bb230afca9fd8958133bbbe948edbd28aa05/base/files/file_util_unittest.cc
[modify] https://crrev.com/1929bb230afca9fd8958133bbbe948edbd28aa05/chrome/browser/printing/printer_manager_dialog_linux.cc
[modify] https://crrev.com/1929bb230afca9fd8958133bbbe948edbd28aa05/chrome/browser/ui/webui/settings_utils_linux.cc
[modify] https://crrev.com/1929bb230afca9fd8958133bbbe948edbd28aa05/net/proxy/proxy_config_service_linux.cc