Instrumented libraries: Remove Precise support

third_party/instrumented_libraries/scripts/download_binaries.py

 #!/usr/bin/env python
 # Copyright (c) 2015 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.
 
 """Downloads pre-built sanitizer-instrumented third-party libraries from GCS."""
 
 import os
 import re
 import subprocess
 import sys
 
 
 SCRIPT_PATH = os.path.abspath(__file__)
 BASE_PATH = os.path.normpath(os.path.join(SCRIPT_PATH, *(4 * ['..'])))
 
 # This defaults to the consuming project's base directory, e.g. 'src' in
 # chromium.
 BASE_DIR = os.path.basename(BASE_PATH)
 
 
 def get_ubuntu_release():
-  supported_releases = ['precise', 'trusty']
+  supported_releases = ['trusty']
   release = subprocess.check_output(['lsb_release', '-cs']).strip()
   if release not in supported_releases:
     raise Exception("Supported Ubuntu versions: %s", str(supported_releases))
   return release
 
 
 def get_configuration(gyp_defines):
   if re.search(r'\b(msan)=1', gyp_defines):
     if 'msan_track_origins=0' in gyp_defines:
       return 'msan-no-origins'
@@ skipping 28 matching lines @@
       '--no_resume',
       '--no_auth',
       '--bucket', 'chromium-instrumented-libraries',
       '-s', sha1file], cwd=target_directory)
 
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv[1:]))