Original patch by rlarocque@chromium.org at http://codereview.chromium.org/7633077/

chrome/chrome.gyp

 # Copyright (c) 2011 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,
 
     'variables': {
       'version_py_path': 'tools/build/version.py',
       'version_path': 'VERSION',
@@ skipping 487 matching lines @@
         'profile_import/profile_import_thread.cc',
         'profile_import/profile_import_thread.h',
       ],
     },
     {
       # Provides a syncapi dynamic library target from checked-in binaries,
       # or from compiling a stub implementation.
       'target_name': 'syncapi_core',
       'type': 'static_library',
       'sources': [
+        'browser/sync/engine/configure_reason.h'
         'browser/sync/engine/http_post_provider_factory.h',
         'browser/sync/engine/http_post_provider_interface.h',
-        'browser/sync/engine/syncapi.cc',
-        'browser/sync/engine/syncapi.h',
-        'browser/sync/engine/configure_reason.h'
+        'browser/sync/engine/syncapi_internal.cc',
+        'browser/sync/engine/syncapi_internal.h',
+        'browser/sync/internal_api/base_node.cc',
+        'browser/sync/internal_api/base_node.h',
+        'browser/sync/internal_api/base_transaction.cc',
+        'browser/sync/internal_api/base_transaction.h',
+        'browser/sync/internal_api/read_node.cc',
+        'browser/sync/internal_api/read_node.h',
+        'browser/sync/internal_api/read_transaction.cc',
+        'browser/sync/internal_api/read_transaction.h',
+        'browser/sync/internal_api/sync_manager.cc',
+        'browser/sync/internal_api/sync_manager.h',
+        'browser/sync/internal_api/user_share.cc',
+        'browser/sync/internal_api/user_share.h',
+        'browser/sync/internal_api/write_node.cc',
+        'browser/sync/internal_api/write_node.h',
+        'browser/sync/internal_api/write_transaction.cc',
+        'browser/sync/internal_api/write_transaction.h',
       ],
       'include_dirs': [
         '..',
       ],
       'defines' : [
         '_CRT_SECURE_NO_WARNINGS',
         '_USE_32BIT_TIME_T',
       ],
       'dependencies': [
         '../base/base.gyp:base',
@@ skipping 1187 matching lines @@
             'destination': '<(PRODUCT_DIR)',
             'files': [
               '<(INTERMEDIATE_DIR)/repack/chrome.pak'
             ],
           },
         ],
       }],  # targets
     }],  # OS != "mac"
   ],  # 'conditions'
 }