Move linux sysroots from chrome/installer/linux to build/linux

build/linux/sysroot_scripts/install-sysroot.py

 #!/usr/bin/env python
 # Copyright (c) 2013 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 install a Debian Wheezy sysroot for making official Google Chrome
 # Linux builds.
 # The sysroot is needed to make Chrome work for Debian Wheezy.
 # This script can be run manually but is more often run as part of gclient
 # hooks. When run from hooks this script should be a no-op on non-linux
@@ skipping 57 matching lines @@
     return 'amd64'
   elif 'target_arch=ia32' in gyp_defines:
     return 'i386'
   elif 'target_arch=arm' in gyp_defines:
     return 'arm'
   elif 'target_arch=mipsel' in gyp_defines:
     return 'mips'
 
   # Figure out host arch using build/detect_host_arch.py and
   # set target_arch to host arch
-  SRC_DIR = os.path.abspath(
-      os.path.join(SCRIPT_DIR, '..', '..', '..', '..'))
-  sys.path.append(os.path.join(SRC_DIR, 'build'))
+  build_dir = os.path.dirname(os.path.dirname(os.path.join(SCRIPT_DIR)))
+  sys.path.append(build_dir)
   import detect_host_arch
 
   detected_host_arch = detect_host_arch.HostArch()
   if detected_host_arch == 'x64':
     return 'amd64'
   elif detected_host_arch == 'ia32':
     return 'i386'
   elif detected_host_arch == 'arm':
     return 'arm'
   elif detected_host_arch == 'mips':
@@ skipping 94 matching lines @@
   parser = optparse.OptionParser('usage: %prog [OPTIONS]')
   parser.add_option('--running-as-hook', action='store_true',
                     default=False, help='Used when running from gclient hooks.'
                                         ' In this mode the sysroot will only '
                                         'be installed for official Linux '
                                         'builds or ARM Linux builds')
   parser.add_option('--arch', type='choice', choices=valid_archs,
                     help='Sysroot architecture: %s' % ', '.join(valid_archs))
   options, _ = parser.parse_args()
   sys.exit(main())