Fix the GN mini_installer_syzygy target.

chrome/tools/build/win/create_installer_archive.py

 #!/usr/bin/env python
 # Copyright (c) 2012 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.
 
 """Script to create Chrome Installer archive.
 
   This script is used to create an archive of all the files required for a
   Chrome install in appropriate directory structure. It reads chrome.release
   file as input, creates chrome.7z archive, compresses setup.exe and
@@ skipping 68 matching lines @@
           # 26bit = 64MB. This results in an additional ~3.5MB decrease.
           # Older 7zip versions can support these settings, as these changes
           # rely on existing functionality in the lzma format.
           '-m0=BCJ2',
           '-m1=LZMA:d27:fb128',
           '-m2=LZMA:d22:fb128:mf=bt2',
           '-m3=LZMA:d22:fb128:mf=bt2',
           '-mb0:1',
           '-mb0s1:2',
           '-mb0s2:3',
-          compressed_file,
-          input_file,]
+          os.path.abspath(compressed_file),
+          os.path.abspath(input_file),]
   if os.path.exists(compressed_file):
     os.remove(compressed_file)
   RunSystemCommand(cmd, verbose)
 
 
 def CopyAllFilesToStagingDir(config, distribution, staging_dir, build_dir,
                              enable_hidpi):
   """Copies the files required for installer archive.
   Copies all common files required for various distributions of Chromium and
   also files for the specific Chromium build specified by distribution.
@@ skipping 582 matching lines @@
                                               MINI_INSTALLER_INPUT_FILE)
 
   return options
 
 
 if '__main__' == __name__:
   options = _ParseOptions()
   if options.verbose:
     print sys.argv
   sys.exit(main(options))