Switch my_activity.py to use gerrit_util for gerrit REST connections

my_activity.py

Index: my_activity.py
diff --git a/my_activity.py b/my_activity.py
index 3d73c8b1c3908853d714b14754f412203eb43ddd..ca5738d6f9759e76cd677995c4eaa24cfd84237b 100755
--- a/my_activity.py
+++ b/my_activity.py
@@ -35,6 +35,7 @@ import sys
 import urllib
 import urllib2
 
+import gerrit_util
 import rietveld
 from third_party import upload
 
@@ -119,12 +120,10 @@ gerrit_instances = [
     'url': 'chromium-review.googlesource.com',
     'shorturl': 'crosreview.com',
   },
-  # TODO(deymo): chrome-internal-review requires login credentials. Enable once
-  # login support is added to this client. See crbug.com/281695.
-  #{
-  #  'url': 'chrome-internal-review.googlesource.com',
-  #  'shorturl': 'crosreview.com/i',
-  #},
+  {
+    'url': 'chrome-internal-review.googlesource.com',
+    'shorturl': 'crosreview.com/i',
+  },
   {
     'host': 'gerrit.chromium.org',
     'port': 29418,
@@ -411,14 +410,13 @@ class MyActivity(object):
         ('q', ' '.join(filters)),
         ('o', 'MESSAGES'),
         ('o', 'LABELS')])
-    rest_url = 'https://%s/changes/?%s' % (instance['url'], args)
+    conn = gerrit_util.CreateHttpConn(instance['url'], 'changes/?%s' % args)
 
-    req = urllib2.Request(rest_url, headers={'Accept': 'text/plain'})
     try:
-      response = urllib2.urlopen(req)
+      response = gerrit_util.ReadHttpResponse(conn, ignore_404=False)
       stdout = response.read()
-    except urllib2.HTTPError, e:
-      print 'ERROR: Looking up %r: %s' % (rest_url, e)
+    except gerrit_util.GerritError, e:
+      print 'ERROR: Looking up %r: %s' % (instance['url'], e)
       return []
 
     # Check that the returned JSON starts with the right marker.