Remove unused imports in webkitpy.

third_party/WebKit/Tools/Scripts/webkitpy/style/checker_unittest.py

 # -*- coding: utf-8; -*-
 #
 # Copyright (C) 2009 Google Inc. All rights reserved.
 # Copyright (C) 2009 Torch Mobile Inc.
 # Copyright (C) 2009 Apple Inc. All rights reserved.
 # Copyright (C) 2010 Chris Jerdonek (chris.jerdonek@gmail.com)
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
@@ skipping 20 matching lines @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 """Unit tests for style.py."""
 
 import logging
 import os
 import unittest
 
 import checker as style
-from webkitpy.common.system.logtesting import LogTesting, TestLogStream
+from webkitpy.common.system.logtesting import TestLogStream
 from checker import _BASE_FILTER_RULES
 from checker import _MAX_REPORTS_PER_CATEGORY
 from checker import _PATH_RULES_SPECIFIER as PATH_RULES_SPECIFIER
 from checker import _all_categories
 from checker import check_webkit_style_configuration
 from checker import check_webkit_style_parser
 from checker import configure_logging
 from checker import CheckerDispatcher
-from checker import ProcessorBase
 from checker import StyleProcessor
 from checker import StyleProcessorConfiguration
 from checkers.cpp import CppChecker
 from checkers.jsonchecker import JSONChecker
 from checkers.python import PythonChecker
 from checkers.text import TextChecker
 from checkers.xml import XMLChecker
 from error_handlers import DefaultStyleErrorHandler
 from filter import validate_filter_rules
 from filter import FilterConfiguration
 from optparser import ArgumentParser
 from optparser import CommandOptionValues
 from webkitpy.common.system.logtesting import LoggingTestCase
-from webkitpy.style.filereader import TextFileReader
 
 
 class ConfigureLoggingTestBase(unittest.TestCase):
 
     """Base class for testing configure_logging().
 
     Sub-classes should implement:
 
       is_verbose: The is_verbose value to pass to configure_logging().
 
@@ skipping 734 matching lines @@
         """Test that carriage returns aren't stripped from files that are allowed to contain them."""
         file_path = 'carriage_returns_allowed.txt'
         lines = ['line1\r', 'line2\r']
         line_numbers = [100]
         self._processor.process(lines=lines,
                                 file_path=file_path,
                                 line_numbers=line_numbers)
         # The carriage return checker should never have been invoked, and so
         # should not have saved off any lines.
         self.assertFalse(hasattr(self.carriage_checker, 'lines'))