Revert of [Telemetry] Migrate browser_test_runner to use typ as the test runner

telemetry/telemetry/testing/browser_test_context.py

Index: telemetry/telemetry/testing/browser_test_context.py
diff --git a/telemetry/telemetry/testing/browser_test_context.py b/telemetry/telemetry/testing/browser_test_context.py
deleted file mode 100644
index f11937278580c9046627958a95ba5df22e54ea10..0000000000000000000000000000000000000000
--- a/telemetry/telemetry/testing/browser_test_context.py
+++ /dev/null
@@ -1,74 +0,0 @@
-# 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 copy
-import sets
-
-
-_global_test_context = None
-
-
-def GetCopy():
-  return copy.deepcopy(_global_test_context)
-
-
-class TypTestContext(object):
-  """ The TestContext that is used for passing data from the main test process
-  to typ's subprocesses. Those includes:
-     _ client_configs: list of client configs that contain infos about binaries
-        to use.
-     _ finder_options: the commandline options object. This is an instance of
-        telemetry.internal.browser.browser_options.BrowserFinderOptions.
-     _ test_class: the name of the test class to be run.
-     _ test_case_ids_to_run: the ids of the test cases to be run. e.g:
-        foo.bar.Test1, foo.bar.Test2,..
-
-
-  This object is designed to be pickle-able so that it can be easily pass from
-  the main process to test subprocesses. It also supports immutable mode to
-  ensure its data won't be changed by the subprocesses.
-  """
-  def __init__(self):
-    self._client_configs = []
-    self._finder_options = None
-    self._test_class = None
-    self._test_cases_ids_to_run = set()
-    self._frozen = False
-
-  def Freeze(self):
-    """ Makes the |self| object immutable.
-
-    Calling setter on |self|'s property will throw exception.
-    """
-    assert self._finder_options
-    assert self._test_class
-    self._frozen = True
-    self._test_cases_ids_to_run = sets.ImmutableSet(self._test_cases_ids_to_run)
-    self._client_configs = tuple(self._client_configs)
-
-  @property
-  def finder_options(self):
-    return self._finder_options
-
-  @property
-  def client_configs(self):
-    return self._client_configs
-
-  @property
-  def test_class(self):
-    return self._test_class
-
-  @property
-  def test_case_ids_to_run(self):
-    return self._test_cases_ids_to_run
-
-  @finder_options.setter
-  def finder_options(self, value):
-    assert not self._frozen
-    self._finder_options = value
-
-  @test_class.setter
-  def test_class(self, value):
-    assert not self._test_class
-    self._test_class = value