Add 'requests' library to third_party.

third_party/requests/packages/charade/__init__.py

+######################## BEGIN LICENSE BLOCK ########################
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+# 02110-1301  USA
+######################### END LICENSE BLOCK #########################
+
+__version__ = "1.0.3"
+from sys import version_info
+
+
+def detect(aBuf):
+    if ((version_info < (3, 0) and isinstance(aBuf, unicode)) or
+            (version_info >= (3, 0) and not isinstance(aBuf, bytes))):
+        raise ValueError('Expected a bytes object, not a unicode object')
+
+    from . import universaldetector
+    u = universaldetector.UniversalDetector()
+    u.reset()
+    u.feed(aBuf)
+    u.close()
+    return u.result