[Android] Prepare build/android/ for catapult+devil.

build/android/gyp/jinja_template.py

 #!/usr/bin/env python
 #
 # Copyright 2014 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.
 
 """Renders one or more template files using the Jinja template engine."""
 
 import codecs
 import optparse
 import os
 import sys
 
-sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir))
-from pylib import constants
 from util import build_utils
 
+sys.path.append(os.path.join(os.path.dirname(__file__), os.pardir))
+from pylib.constants import host_paths
+
 # Import jinja2 from third_party/jinja2
-sys.path.append(os.path.join(constants.DIR_SOURCE_ROOT, 'third_party'))
+sys.path.append(os.path.join(host_paths.DIR_SOURCE_ROOT, 'third_party'))
 import jinja2  # pylint: disable=F0401
 
 
 class RecordingFileSystemLoader(jinja2.FileSystemLoader):
   '''A FileSystemLoader that stores a list of loaded templates.'''
   def __init__(self, searchpath):
     jinja2.FileSystemLoader.__init__(self, searchpath)
     self.loaded_templates = set()
 
   def get_source(self, environment, template):
@@ skipping 42 matching lines @@
                     'only if there is a single input.')
   parser.add_option('--outputs-zip', help='A zip file containing the processed '
                     'templates. Required if there are multiple inputs.')
   parser.add_option('--inputs-base-dir', help='A common ancestor directory of '
                     'the inputs. Each output\'s path in the output zip will '
                     'match the relative path from INPUTS_BASE_DIR to the '
                     'input. Required if --output-zip is given.')
   parser.add_option('--loader-base-dir', help='Base path used by the template '
                     'loader. Must be a common ancestor directory of '
                     'the inputs. Defaults to DIR_SOURCE_ROOT.',
-                    default=constants.DIR_SOURCE_ROOT)
+                    default=host_paths.DIR_SOURCE_ROOT)
   parser.add_option('--variables', help='Variables to be made available in the '
                     'template processing environment, as a GYP list (e.g. '
                     '--variables "channel=beta mstone=39")', default='')
   options, args = parser.parse_args()
 
   build_utils.CheckOptions(options, parser, required=['inputs'])
   inputs = build_utils.ParseGypList(options.inputs)
 
   if (options.output is None) == (options.outputs_zip is None):
     parser.error('Exactly one of --output and --output-zip must be given')
@@ skipping 21 matching lines @@
     ProcessFiles(env, inputs, options.loader_base_dir, options.inputs_base_dir,
                  options.outputs_zip, variables)
 
   if options.depfile:
     deps = loader.get_loaded_templates() + build_utils.GetPythonDependencies()
     build_utils.WriteDepfile(options.depfile, deps)
 
 
 if __name__ == '__main__':
   main()