Remove several unneeded modules from webkitpy.common.

Tools/Scripts/webkitpy/common/thread/messagepump_unittest.py

-# Copyright (C) 2010 Google Inc. All rights reserved.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-#
-#    * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#    * Redistributions in binary form must reproduce the above
-# copyright notice, this list of conditions and the following disclaimer
-# in the documentation and/or other materials provided with the
-# distribution.
-#    * Neither the name of Google Inc. nor the names of its
-# contributors may be used to endorse or promote products derived from
-# this software without specific prior written permission.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-import unittest
-
-from webkitpy.common.thread.messagepump import MessagePump, MessagePumpDelegate
-from webkitpy.common.thread.threadedmessagequeue import ThreadedMessageQueue
-
-
-class TestDelegate(MessagePumpDelegate):
-    def __init__(self):
-        self.log = []
-
-    def schedule(self, interval, callback):
-        self.callback = callback
-        self.log.append("schedule")
-
-    def message_available(self, message):
-        self.log.append("message_available: %s" % message)
-
-    def final_message_delivered(self):
-        self.log.append("final_message_delivered")
-
-
-class MessagePumpTest(unittest.TestCase):
-
-    def test_basic(self):
-        queue = ThreadedMessageQueue()
-        delegate = TestDelegate()
-        pump = MessagePump(delegate, queue)
-        self.assertEqual(delegate.log, [
-            'schedule'
-        ])
-        delegate.callback()
-        queue.post("Hello")
-        queue.post("There")
-        delegate.callback()
-        self.assertEqual(delegate.log, [
-            'schedule',
-            'schedule',
-            'message_available: Hello',
-            'message_available: There',
-            'schedule'
-        ])
-        queue.post("More")
-        queue.post("Messages")
-        queue.stop()
-        delegate.callback()
-        self.assertEqual(delegate.log, [
-            'schedule',
-            'schedule',
-            'message_available: Hello',
-            'message_available: There',
-            'schedule',
-            'message_available: More',
-            'message_available: Messages',
-            'final_message_delivered'
-        ])