Fix submit_try

tools/buildbot_globals.py

Index: tools/buildbot_globals.py
diff --git a/tools/buildbot_globals.py b/tools/buildbot_globals.py
index 1dd781906189f566ff8c53f9a147e0369963717b..74fbb40360e0e94162eb99c81a036be068d75fb5 100755
--- a/tools/buildbot_globals.py
+++ b/tools/buildbot_globals.py
@@ -9,15 +9,12 @@ Provides read access to buildbot's global_variables.json .
 """
 
 
-from contextlib import closing
-
 import HTMLParser
-import base64
 import json
 import re
+import retrieve_from_googlesource
 import svn
 import sys
-import urllib2
 
 
 _global_vars = None
@@ -61,8 +58,8 @@ def Get(var_name):
   global _global_vars
   if not _global_vars:
     try:
-      with closing(urllib2.urlopen(_GLOBAL_VARS_JSON_BASE64_URL)) as f:
-        global_vars_text = base64.b64decode(f.read())
+      retrieve_from_googlesource.retrieve_from_googlesource(
+          _GLOBAL_VARS_JSON_BASE64_URL)
     except Exception as e:
       raise GlobalVarsRetrievalError('Failed to retrieve %s:\n%s' %
                                      (_GLOBAL_VARS_JSON_BASE64_URL, str(e)))