Update tlslite to 0.4.6.

chrome/browser/policy/test/policy_testserver.py

Index: chrome/browser/policy/test/policy_testserver.py
diff --git a/chrome/browser/policy/test/policy_testserver.py b/chrome/browser/policy/test/policy_testserver.py
index 1bb4bbbfdb7b174670f1dc27976199470384bb81..13b98f97ae27f54106f1726095a26aa721874be8 100644
--- a/chrome/browser/policy/test/policy_testserver.py
+++ b/chrome/browser/policy/test/policy_testserver.py
@@ -735,7 +735,7 @@ class PolicyRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
     response.policy_data = signed_data
     if signing_key:
       response.policy_data_signature = (
-          signing_key['private_key'].hashAndSign(signed_data).tostring())
+          bytes(signing_key['private_key'].hashAndSign(signed_data)))
       if msg.public_key_version != current_key_index + 1:
         response.new_public_key = signing_key['public_key']
 
@@ -753,7 +753,7 @@ class PolicyRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
 
         if req_key:
           response.new_public_key_signature = (
-              req_key.hashAndSign(response.new_public_key).tostring())
+              bytes(req_key.hashAndSign(response.new_public_key)))
 
     return (200, response.SerializeToString())
 
@@ -848,7 +848,7 @@ class PolicyTestServer(testserver_base.BrokenPipeHandlerMixIn,
           key = tlslite.api.parsePEMKey(key_str, private=True)
         except SyntaxError:
           key = tlslite.utils.python_rsakey.Python_RSAKey._parsePKCS8(
-              tlslite.utils.cryptomath.stringToBytes(key_str))
+              bytearray(key_str))
 
         assert key is not None
         key_info = { 'private_key' : key }
@@ -866,7 +866,7 @@ class PolicyTestServer(testserver_base.BrokenPipeHandlerMixIn,
       for signing_key in SIGNING_KEYS:
         decoded_key = base64.b64decode(signing_key['key']);
         key = tlslite.utils.python_rsakey.Python_RSAKey._parsePKCS8(
-            tlslite.utils.cryptomath.stringToBytes(decoded_key))
+            bytearray(decoded_key))
         assert key is not None
         # Grab the signature dictionary for this key and decode all of the
         # signatures.