[Sync] Add auto-generated ModelType in Java.

sync/sync.gyp

 # Copyright 2013 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,
     # Setting these two variables allows other targets to use the
     # sync_proto_sources variable as the list of sync protocol buffer files.
     'sync_proto_sources_dir': 'protocol',
@@ skipping 456 matching lines @@
             ],
         }],
         ['OS=="mac"', {
           'link_settings': {
             'libraries': [
               # Required by get_session_name_mac.mm on Mac.
               '$(SDKROOT)/System/Library/Frameworks/SystemConfiguration.framework',
             ]
           },
         }],
+        ['OS=="android"', {
+          'dependencies': [
+            'sync_jni_headers',
+          ],
+          'sources': [
+            'android/model_type_helper.cc',
+            'android/model_type_helper.h',
+            'android/sync_jni_registrar.cc',
+            'android/sync_jni_registrar.h',
+          ],
+        }],
       ],
     },
     {
       # Contains sync protobuf definitions.  Do not depend on this directly.
       # Depend on the 'sync' target to get the relevant C++ code, too.
       #
       # GN version: //sync/protocol
       'target_name': 'sync_proto',
       'type': '<(component)',
       'include_dirs': [
@@ skipping 40 matching lines @@
       },
       'includes': [
         '../build/protoc.gypi'
       ],
       'defines': [
         'SYNC_IMPLEMENTATION'
       ],
     },
   ],
 }