Check in the thirdparty libs needed for webkitpy.

Tools/Scripts/webkitpy/thirdparty/mechanize/_debug.py

Index: Tools/Scripts/webkitpy/thirdparty/mechanize/_debug.py
diff --git a/Tools/Scripts/webkitpy/thirdparty/mechanize/_debug.py b/Tools/Scripts/webkitpy/thirdparty/mechanize/_debug.py
new file mode 100644
index 0000000000000000000000000000000000000000..8243969990ddf98865bbcf8bcd910819cc18dfb4
--- /dev/null
+++ b/Tools/Scripts/webkitpy/thirdparty/mechanize/_debug.py
@@ -0,0 +1,28 @@
+import logging
+
+from _response import response_seek_wrapper
+from _urllib2_fork import BaseHandler
+
+
+class HTTPResponseDebugProcessor(BaseHandler):
+    handler_order = 900  # before redirections, after everything else
+
+    def http_response(self, request, response):
+        if not hasattr(response, "seek"):
+            response = response_seek_wrapper(response)
+        info = logging.getLogger("mechanize.http_responses").info
+        try:
+            info(response.read())
+        finally:
+            response.seek(0)
+        info("*****************************************************")
+        return response
+
+    https_response = http_response
+
+class HTTPRedirectDebugProcessor(BaseHandler):
+    def http_request(self, request):
+        if hasattr(request, "redirect_dict"):
+            info = logging.getLogger("mechanize.http_redirects").info
+            info("redirecting to %s", request.get_full_url())
+        return request