sync: Add sessions to protocol and chromiumsync python test server.

net/tools/testserver/chromiumsync.py

 #!/usr/bin/python2.4
 # Copyright (c) 2010 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 """An implementation of the server side of the Chromium sync protocol.
 
 The details of the protocol are described mostly by comments in the protocol
 buffer definition at chrome/browser/sync/protocol/sync.proto.
 """
 
 import operator
 import random
 import threading
 
 import autofill_specifics_pb2
 import bookmark_specifics_pb2
 import extension_specifics_pb2
 import nigori_specifics_pb2
 import password_specifics_pb2
 import preference_specifics_pb2
 import theme_specifics_pb2
 import typed_url_specifics_pb2
+import session_specifics_pb2
 import sync_pb2
 
 # An enumeration of the various kinds of data that can be synced.
 # Over the wire, this enumeration is not used: a sync object's type is
 # inferred by which EntitySpecifics extension it has.  But in the context
 # of a program, it is useful to have an enumeration.
 ALL_TYPES = (
     TOP_LEVEL,  # The type of the 'Google Chrome' folder.
     AUTOFILL,
     BOOKMARK,
     EXTENSIONS,
     NIGORI,
     PASSWORD,
     PREFERENCE,
-    # SESSION,
+    SESSION,
     THEME,
-    TYPED_URL) = range(9)
+    TYPED_URL) = range(10)
 
 # Given a sync type from ALL_TYPES, find the extension token corresponding
 # to that datatype.  Note that TOP_LEVEL has no such token.
 SYNC_TYPE_TO_EXTENSION = {
     AUTOFILL: autofill_specifics_pb2.autofill,
     BOOKMARK: bookmark_specifics_pb2.bookmark,
     EXTENSIONS: extension_specifics_pb2.extension,
     NIGORI: nigori_specifics_pb2.nigori,
     PASSWORD: password_specifics_pb2.password,
     PREFERENCE: preference_specifics_pb2.preference,
-    # SESSION: session_specifics_pb2.session,     # Disabled
+    SESSION: session_specifics_pb2.session,
     THEME: theme_specifics_pb2.theme,
     TYPED_URL: typed_url_specifics_pb2.typed_url,
     }
 
 # The parent ID used to indicate a top-level node.
 ROOT_ID = '0'
 
 def GetEntryType(entry):
   """Extract the sync type from a SyncEntry.
 
@@ skipping 97 matching lines @@
       PermanentItem('other_bookmarks', name='Other Bookmarks',
                     parent_tag='google_chrome_bookmarks', sync_type=BOOKMARK),
       PermanentItem('google_chrome_preferences', name='Preferences',
                     parent_tag='google_chrome', sync_type=PREFERENCE),
       PermanentItem('google_chrome_autofill', name='Autofill',
                     parent_tag='google_chrome', sync_type=AUTOFILL),
       PermanentItem('google_chrome_extensions', name='Extensions',
                     parent_tag='google_chrome', sync_type=EXTENSIONS),
       PermanentItem('google_chrome_passwords', name='Passwords',
                     parent_tag='google_chrome', sync_type=PASSWORD),
-      # TODO(rsimha): Disabled since the protocol does not support it yet.
-      # PermanentItem('google_chrome_sessions', name='Sessions',
-      #               parent_tag='google_chrome', SESSION),
+      PermanentItem('google_chrome_sessions', name='Sessions',
+                    parent_tag='google_chrome', sync_type=SESSION),
       PermanentItem('google_chrome_themes', name='Themes',
                     parent_tag='google_chrome', sync_type=THEME),
       PermanentItem('google_chrome_typed_urls', name='Typed URLs',
                     parent_tag='google_chrome', sync_type=TYPED_URL),
       PermanentItem('google_chrome_nigori', name='Nigori',
                     parent_tag='google_chrome', sync_type=NIGORI),
       ]
 
   def __init__(self):
     self._version = 0
@@ skipping 510 matching lines @@
     new_timestamp, entries = self.account.GetChangesFromTimestamp(
         requested_types, update_request.from_timestamp)
 
     # If the client is up to date, we are careful not to set the
     # new_timestamp field.
     if new_timestamp != update_request.from_timestamp:
       update_response.new_timestamp = new_timestamp
       for e in entries:
         reply = update_response.entries.add()
         reply.CopyFrom(e)