Android: renames pylib.constants.CHROME_DIR to DIR_SOURCE_ROOT.

build/android/findbugs_diff.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.
 
 """Runs findbugs, and returns an error code if there are new warnings.
 This runs findbugs with an additional flag to exclude known bugs.
 To update the list of known bugs, do this:
 
@@ skipping 20 matching lines @@
 from pylib import constants
 from pylib.utils import findbugs
 
 
 def main(argv):
   parser = findbugs.GetCommonParser()
 
   options, _ = parser.parse_args()
 
   if not options.base_dir:
-    options.base_dir = os.path.join(constants.CHROME_DIR, 'build', 'android',
-                                    'findbugs_filter')
+    options.base_dir = os.path.join(constants.DIR_SOURCE_ROOT, 'build',
+                                    'android', 'findbugs_filter')
   if not options.only_analyze:
     options.only_analyze = 'org.chromium.-'
 
   return findbugs.Run(options)
 
 
 if __name__ == '__main__':
   sys.exit(main(sys.argv))