Remove unused files from webkitpy.

Tools/Scripts/webkitpy/common/system/zip_mock.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:
-#
-# 1.  Redistributions of source code must retain the above copyright
-#     notice, this list of conditions and the following disclaimer.
-# 2.  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.
-#
-# THIS SOFTWARE IS PROVIDED BY APPLE AND ITS 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 APPLE OR ITS 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.
-
-from webkitpy.common.system.fileset import FileSetFileHandle
-from webkitpy.common.system.filesystem_mock import MockFileSystem
-
-
-class MockZip(object):
-    """A mock zip file that can have new files inserted into it."""
-    def __init__(self, filesystem=None):
-        self._filesystem = filesystem or MockFileSystem()
-        self._files = {}
-
-    def __str__(self):
-        return "MockZip"
-
-    def insert(self, filename, content):
-        self._files[filename] = content
-
-    def namelist(self):
-        return self._files.keys()
-
-    def open(self, filename):
-        return FileSetFileHandle(self, filename)
-
-    def read(self, filename):
-        return self._files[filename]
-
-    def extract(self, filename, path):
-        full_path = self._filesystem.join(path, filename)
-        contents = self.open(filename).contents()
-        self._filesystem.write_text_file(full_path, contents)
-
-    def delete(self, filename):
-        self._files[filename] = None