Make find_runtime_tools available for non-Chrome executables.

tools/linux/tests/procfs_tests.py

 #!/usr/bin/env python
 # Copyright 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.
 
 import cStringIO
 import logging
 import os
 import sys
 import unittest
@@ skipping 65 matching lines @@
         'name': ProcMapsTest._EXPECTED[index][10],
         }
 
   def test_load(self):
     maps = ProcMaps.load_file(cStringIO.StringIO(self._TEST_PROCMAPS))
     for index, entry in enumerate(maps):
       self.assertEqual(entry.as_dict(), self._expected_as_dict(index))
 
   def test_constants(self):
     maps = ProcMaps.load_file(cStringIO.StringIO(self._TEST_PROCMAPS))
-    selected = [4, 7]
+    selected = [0, 2, 4, 7]
     for index, entry in enumerate(maps.iter(ProcMaps.constants)):
       self.assertEqual(entry.as_dict(),
                        self._expected_as_dict(selected[index]))
 
   def test_executable(self):
     maps = ProcMaps.load_file(cStringIO.StringIO(self._TEST_PROCMAPS))
-    selected = [3, 6]
+    selected = [1, 3, 6, 9]
     for index, entry in enumerate(maps.iter(ProcMaps.executable)):
       self.assertEqual(entry.as_dict(),
                        self._expected_as_dict(selected[index]))
 
   def test_executable_and_constants(self):
     maps = ProcMaps.load_file(cStringIO.StringIO(self._TEST_PROCMAPS))
-    selected = [3, 4, 6, 7]
+    selected = [0, 1, 2, 3, 4, 6, 7, 9]
     for index, entry in enumerate(maps.iter(ProcMaps.executable_and_constants)):
       self.assertEqual(entry.as_dict(),
                        self._expected_as_dict(selected[index]))
 
 
 if __name__ == '__main__':
   logging.basicConfig(
       level=logging.DEBUG if '-v' in sys.argv else logging.ERROR,
       format='%(levelname)5s %(filename)15s(%(lineno)3d): %(message)s')
   unittest.main()