Creates a flag to enable/disable spellchecker.

chrome/chrome_tests_unit.gypi

 # Copyright 2012 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.
 {
   'targets': [
     {
       # This target contains mocks and test utilities that don't belong in
       # production libraries but are used by more than one test executable.
       'target_name': 'test_support_common',
       'type': 'static_library',
@@ skipping 1949 matching lines @@
           ],
           # Bundle all the necessary resources into the test bundle.
           'includes': ['chrome_ios_bundle_resources.gypi'],
           'xcode_settings': {'OTHER_LDFLAGS': ['-ObjC']},
         }],
         ['enable_background==0', {
           'sources/': [
             ['exclude', '^browser/background/'],
           ],
         }],
+        ['enable_spellcheck==0', {
+          'sources/': [
+             ['exclude', '^browser/spellchecker/'],
+             ['exclude', '^renderer/spellchecker/'],
+          ],
+        }],
         ['enable_one_click_signin==0', {
           'sources!': [
             'browser/ui/cocoa/one_click_signin_bubble_controller_unittest.mm',
             'browser/ui/sync/one_click_signin_helper_unittest.cc',
           ]
         }],
         ['disable_nacl==1', {
           'sources!':[
             'browser/nacl_host/nacl_file_host_unittest.cc',
             'browser/nacl_host/nacl_validation_cache_unittest.cc',
@@ skipping 677 matching lines @@
               # more details.
               'DebugInformationFormat': '3',
               'ProgramDataBaseFileName': '<(PRODUCT_DIR)/unit_tests.exe.pdb',
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }