Updating Layout test analyzer to add control to show issue detail or not.

media/tools/layout_tests/trend_graph_unittest.py

 #!/usr/bin/env python
 # Copyright (c) 2011 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 os
 import shutil
 import unittest
 
 from trend_graph import TrendGraph
@@ skipping 11 matching lines @@
     data_map['skip'] = (['test1', 'test2'], 'undefined', 'undefined')
     data_map['nonskip'] = (['test1', 'test2', 'test3'], 'undefined',
                            'undefined')
     data_map['passingrate'] = (str(4), 'undefined', 'undefined')
 
     trend_graph.Update('2008,1,1,13,45,00', data_map)
     # Assert the result graph from the file.
     f = open(test_graph_file_path)
     lines2 = f.readlines()
     f.close()
-    lineCount = 0
+    line_count = 0
     for line in lines2:
       if '2008,0,1,13,45,00' in line:
-        lineCount += 1
-    self.assertEqual(lineCount, 2)
+        line_count += 1
+    self.assertEqual(line_count, 2)
 
 
 if __name__ == '__main__':
   unittest.main()