Remove all uses of toolkit_use_gtk in the gyp files.

ipc/ipc.gyp

 # Copyright (c) 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'includes': [
     'ipc.gypi',
@@ skipping 44 matching lines @@
         'ipc_sync_channel_unittest.cc',
         'ipc_sync_message_unittest.cc',
         'ipc_sync_message_unittest.h',
         'ipc_test_base.cc',
         'ipc_test_base.h',
         'run_all_unittests.cc',
         'sync_socket_unittest.cc',
         'unix_domain_socket_util_unittest.cc',
       ],
       'conditions': [
-        ['toolkit_uses_gtk == 1', {
-          'dependencies': [
-            '../build/linux/system.gyp:gtk',
-          ],
-        }],
         ['OS == "win" or OS == "ios"', {
           'sources!': [
             'unix_domain_socket_util_unittest.cc',
           ],
         }],
         ['OS == "android" and gtest_target_type == "shared_library"', {
           'dependencies': [
             '../testing/android/native_test.gyp:native_test_native_code',
           ],
         }],
@@ skipping 24 matching lines @@
       ],
       'include_dirs': [
         '..'
       ],
       'sources': [
         'ipc_perftests.cc',
         'ipc_test_base.cc',
         'ipc_test_base.h',
       ],
       'conditions': [
-        ['toolkit_uses_gtk == 1', {
-          'dependencies': [
-            '../build/linux/system.gyp:gtk',
-          ],
-        }],
         ['OS == "android" and gtest_target_type == "shared_library"', {
           'dependencies': [
             '../testing/android/native_test.gyp:native_test_native_code',
           ],
         }],
         ['os_posix == 1 and OS != "mac" and OS != "android"', {
           'conditions': [
             # TODO(dmikurube): Kill linux_use_tcmalloc. http://crbug.com/345554
             ['(use_allocator!="none" and use_allocator!="see_use_tcmalloc") or (use_allocator=="see_use_tcmalloc" and linux_use_tcmalloc==1)', {
               'dependencies': [
@@ skipping 75 matching lines @@
           ],
           'variables': {
             'test_suite_name': 'ipc_perftests',
             'input_shlib_path': '<(SHARED_LIB_DIR)/<(SHARED_LIB_PREFIX)ipc_perftests<(SHARED_LIB_SUFFIX)',
           },
           'includes': [ '../build/apk_test.gypi' ],
         }],
     }],
   ],
 }