Refactoring: Remove trivial uses of OutputCapture.

third_party/WebKit/Tools/Scripts/webkitpy/tool/commands/optimize_baselines_unittest.py

 # Copyright 2016 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 optparse
 
-from webkitpy.common.system.output_capture import OutputCapture
 from webkitpy.tool.commands.optimize_baselines import OptimizeBaselines
 from webkitpy.tool.commands.rebaseline_unittest import BaseTestCase
 
 
 class TestOptimizeBaselines(BaseTestCase):
     command_constructor = OptimizeBaselines
 
     def _write_test_file(self, port, path, contents):
         abs_path = self.tool.filesystem.join(port.layout_tests_dir(), path)
         self.tool.filesystem.write_text_file(abs_path, contents)
 
     def setUp(self):
         super(TestOptimizeBaselines, self).setUp()
 
     def test_optimize_all_suffixes_by_default(self):
         test_port = self.tool.port_factory.get('test')
         self._write_test_file(test_port, 'another/test.html', "Dummy test contents")
         self._write_test_file(test_port, 'platform/test-mac-mac10.10/another/test-expected.txt', "result A")
         self._write_test_file(test_port, 'platform/test-mac-mac10.10/another/test-expected.png', "result A png")
         self._write_test_file(test_port, 'another/test-expected.txt', "result A")
         self._write_test_file(test_port, 'another/test-expected.png', "result A png")
 
-        try:
-            oc = OutputCapture()
-            oc.capture_output()
-            self.command.execute(
-                optparse.Values({'suffixes': 'txt,wav,png', 'no_modify_git': True, 'platform': 'test-mac-mac10.10'}),
-                ['another/test.html'],
-                self.tool)
-        finally:
-            oc.restore_output()
+        self.command.execute(
+            optparse.Values({'suffixes': 'txt,wav,png', 'no_modify_git': True, 'platform': 'test-mac-mac10.10'}),
+            ['another/test.html'],
+            self.tool)
 
         self.assertFalse(
             self.tool.filesystem.exists(self.tool.filesystem.join(
                 test_port.layout_tests_dir(), 'platform/mac/another/test-expected.txt')))
         self.assertFalse(
             self.tool.filesystem.exists(self.tool.filesystem.join(
                 test_port.layout_tests_dir(), 'platform/mac/another/test-expected.png')))
         self.assertTrue(
             self.tool.filesystem.exists(self.tool.filesystem.join(
                 test_port.layout_tests_dir(), 'another/test-expected.txt')))
         self.assertTrue(
             self.tool.filesystem.exists(self.tool.filesystem.join(
                 test_port.layout_tests_dir(), 'another/test-expected.png')))