Add google-endpoints to third_party/.

third_party/google-endpoints/setuptools/py27compat.py

+"""
+Compatibility Support for Python 2.7 and earlier
+"""
+
+import sys
+import platform
+
+
+def get_all_headers(message, key):
+    """
+    Given an HTTPMessage, return all headers matching a given key.
+    """
+    return message.get_all(key)
+
+
+if sys.version_info < (3,):
+
+    def get_all_headers(message, key):
+        return message.getheaders(key)
+
+
+linux_py2_ascii = (
+        platform.system() == 'Linux' and
+        sys.getfilesystemencoding() == 'ascii' and
+        sys.version_info < (3,)
+)
+
+rmtree_safe = str if linux_py2_ascii else lambda x: x
+"""Workaround for http://bugs.python.org/issue24672"""