Switched sync protobufs to use "heavy" protobufs.

chrome/browser/sync/protocol/sync_proto.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 36 matching lines @@
         },
       ],
       'dependencies': [
         '../../../../third_party/protobuf2/protobuf.gyp:protoc#host',
       ],
     },
     {
       'target_name': 'sync_proto_cpp',
       'type': 'none',
       'export_dependent_settings': [
-        '../../../../third_party/protobuf2/protobuf.gyp:protobuf_lite',
+        # TODO(akalin): Change back to protobuf_lite once it supports
+        # preserving unknown fields.
+        '../../../../third_party/protobuf2/protobuf.gyp:protobuf',
         'sync_proto',
       ],
       'dependencies': [
-        '../../../../third_party/protobuf2/protobuf.gyp:protobuf_lite',
+        # TODO(akalin): Change back to protobuf_lite once it supports
+        # preserving unknown fields.
+        '../../../../third_party/protobuf2/protobuf.gyp:protobuf',
         'sync_proto',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '<(SHARED_INTERMEDIATE_DIR)/protoc_out',
         ],
       },
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: