Fix Attribute error cause due to recent refactor.

tools/bisect-perf-regression.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.
 
 """Performance Test Bisect Tool
 
 This script bisects a series of changelists using binary search. It starts at
 a bad revision where a performance metric has regressed, and asks for a last
 known-good revision. It will then binary search across this revision range by
@@ skipping 1833 matching lines @@
       return self.PerformCrosChrootCleanup()
     return True
 
   def RunPostSync(self, depot):
     """Performs any work after syncing.
 
     Returns:
       True if successful.
     """
     if self.opts.target_platform == 'android':
-      if not bisect_utils.SetupAndroidBuildEnvironment(self.opts,
+      if not builder.SetupAndroidBuildEnvironment(self.opts,
           path_to_src=self.src_cwd):
         return False
 
     if depot == 'cros':
       return self.CreateCrosChroot()
     else:
       return self.RunGClientHooks()
     return True
 
   def ShouldSkipRevision(self, depot, revision):
@@ skipping 1491 matching lines @@
       # bugs. If you change this, please update the perf dashboard as well.
       bisect_utils.OutputAnnotationStepStart('Results')
     print 'Error: %s' % e.message
     if opts.output_buildbot_annotations:
       bisect_utils.OutputAnnotationStepClosed()
   return 1
 
 
 if __name__ == '__main__':
   sys.exit(main())