Remove unused files from webkitpy.

Tools/Scripts/webkitpy/common/system/zipfileset.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.
-
-import urllib
-import zipfile
-
-from webkitpy.common.net.networktransaction import NetworkTransaction
-from webkitpy.common.system.fileset import FileSetFileHandle
-from webkitpy.common.system.filesystem import FileSystem
-
-
-class ZipFileSet(object):
-    """The set of files in a zip file that resides at a URL (local or remote)"""
-    def __init__(self, zip_url, filesystem=None, zip_factory=None):
-        self._zip_url = zip_url
-        self._temp_file = None
-        self._zip_file = None
-        self._filesystem = filesystem or FileSystem()
-        self._zip_factory = zip_factory or self._retrieve_zip_file
-
-    def _retrieve_zip_file(self, zip_url):
-        temp_file = NetworkTransaction().run(lambda: urllib.urlretrieve(zip_url)[0])
-        return (temp_file, zipfile.ZipFile(temp_file))
-
-    def _load(self):
-        if self._zip_file is None:
-            self._temp_file, self._zip_file = self._zip_factory(self._zip_url)
-
-    def open(self, filename):
-        self._load()
-        return FileSetFileHandle(self, filename, self._filesystem)
-
-    def close(self):
-        if self._temp_file:
-            self._filesystem.remove(self._temp_file)
-            self._temp_file = None
-
-    def namelist(self):
-        self._load()
-        return self._zip_file.namelist()
-
-    def read(self, filename):
-        self._load()
-        return self._zip_file.read(filename)
-
-    def extract(self, filename, path):
-        self._load()
-        self._zip_file.extract(filename, path)
-
-    def delete(self, filename):
-        raise Exception("Can't delete from a ZipFileSet.")