Enable bookmark sync building by default for Chromium builds on windows.

chrome/chrome.gyp

 # Copyright (c) 2009 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,
 
     # Define the common dependencies that contain all the actual
     # Chromium functionality.  This list gets pulled in below by
@@ skipping 100 matching lines @@
             'mac_creator': 'rimZ',
           }, {  # else: branding!="Chrome"
             'mac_bundle_id': 'org.chromium.Chromium',
             'mac_creator': 'Cr24',
           }],  # branding
         ],  # conditions
       }],  # OS=="mac"
       ['OS=="win"', {
         # Whether or not browser sync code is built in.
         'chrome_personalization%': 1,
-
         # Used to build a stub (no-op) syncapi engine.
-        'conditions': [
-          ['branding=="Chrome"', {
-            'use_syncapi_stub%': 0,
-          }, {
-            'use_syncapi_stub%': 1,
-          }],
-        ],
+        'use_syncapi_stub%': 0,
       }, {
         'chrome_personalization%': 0,
         'use_syncapi_stub%': 1,
-      }],
+      }],  # OS=="win"
     ],  # conditions
   },  # variables
   'target_defaults': {
     'sources/': [
       ['exclude', '/(cocoa|gtk|win)/'],
       ['exclude', '_(cocoa|gtk|linux|mac|posix|skia|win|views|x)(_unittest)?\\.(cc|mm?)$'],
       ['exclude', '/(gtk|win|x11)_[^/]*\\.cc$'],
     ],
     'conditions': [
       ['OS=="linux" or OS=="freebsd"', {'sources/': [
@@ skipping 6450 matching lines @@
               'dependencies': [
                 '../third_party/pthreads-win32/pthreads.gyp:pthreads',
               ],
             }],
           ],
         },
       ],  # targets when chrome_personalization==1 and use_syncapi_stub==0
     }],
   ],  # 'conditions'
 }