For consistency with benchmark, rename unittest.output_formatter -> progress_reporter.

tools/telemetry/telemetry/unittest/output_formatter_unittest.py

Index: tools/telemetry/telemetry/unittest/output_formatter_unittest.py
diff --git a/tools/telemetry/telemetry/unittest/output_formatter_unittest.py b/tools/telemetry/telemetry/unittest/output_formatter_unittest.py
deleted file mode 100644
index 571062b9827d54f0db16aa17dfe210b78372cdc8..0000000000000000000000000000000000000000
--- a/tools/telemetry/telemetry/unittest/output_formatter_unittest.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# Copyright 2014 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 unittest
-
-from telemetry.unittest import output_formatter
-
-
-class TestFoo(unittest.TestCase):
-  # Test method doesn't have test- prefix intentionally. This is so that
-  # run_test script won't run this test.
-  def RunPassingTest(self):
-    pass
-
-  def RunFailingTest(self):
-    self.fail('expected failure')
-
-
-class LoggingOutputFormatter(object):
-  def __init__(self):
-    self._call_log = []
-
-  @property
-  def call_log(self):
-    return tuple(self._call_log)
-
-  def __getattr__(self, name):
-    def wrapper(*_):
-      self._call_log.append(name)
-    return wrapper
-
-
-class OutputFormatterTest(unittest.TestCase):
-  def testTestRunner(self):
-    suite = output_formatter.TestSuite()
-    suite.addTest(TestFoo(methodName='RunPassingTest'))
-    suite.addTest(TestFoo(methodName='RunFailingTest'))
-
-    formatter = LoggingOutputFormatter()
-    runner = output_formatter.TestRunner()
-    output_formatters = (formatter,)
-    result = runner.run(suite, output_formatters, 1, None)
-
-    self.assertEqual(len(result.successes), 1)
-    self.assertEqual(len(result.failures), 1)
-    self.assertEqual(len(result.failures_and_errors), 1)
-    expected = (
-        'StartTestRun', 'StartTestSuite',
-        'StartTest', 'Success', 'StopTest',
-        'StartTest', 'Failure', 'StopTest',
-        'StopTestSuite', 'StopTestRun',
-    )
-    self.assertEqual(formatter.call_log, expected)