Wrap the p2p transport API in a compile time flag.

chrome/chrome_tests.gypi

 # 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' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
@@ skipping 1862 matching lines @@
         '../content/browser/geolocation/wifi_data_provider_unittest_chromeos.cc',
         '../content/browser/geolocation/wifi_data_provider_unittest_win.cc',
         '../content/browser/geolocation/win7_location_api_unittest_win.cc',
         '../content/browser/geolocation/win7_location_provider_unittest_win.cc',
         '../content/browser/gpu_blacklist_unittest.cc',
         '../content/browser/host_zoom_map_unittest.cc',
         '../content/browser/in_process_webkit/webkit_context_unittest.cc',
         '../content/browser/in_process_webkit/webkit_thread_unittest.cc',
         '../content/browser/plugin_service_unittest.cc',
         '../content/browser/renderer_host/audio_renderer_host_unittest.cc',
-        '../content/browser/renderer_host/p2p/socket_host_udp_unittest.cc',
         '../content/browser/renderer_host/render_view_host_unittest.cc',
         '../content/browser/renderer_host/render_widget_host_unittest.cc',
         '../content/browser/renderer_host/resource_dispatcher_host_unittest.cc',
         '../content/browser/renderer_host/resource_queue_unittest.cc',
         '../content/browser/site_instance_unittest.cc',
         '../content/browser/speech/endpointer/endpointer_unittest.cc',
         '../content/browser/speech/speech_recognition_request_unittest.cc',
         '../content/browser/speech/speech_recognizer_unittest.cc',
         '../content/browser/tab_contents/navigation_controller_unittest.cc',
         '../content/browser/tab_contents/navigation_entry_unittest.cc',
@@ skipping 14 matching lines @@
         '../content/common/sandbox_mac_unittest_helper.mm',
         '../content/common/sandbox_mac_system_access_unittest.mm',
         '../content/gpu/gpu_idirect3d9_mock_win.cc',
         '../content/gpu/gpu_idirect3d9_mock_win.h',
         '../content/gpu/gpu_info_collector_unittest.cc',
         '../content/gpu/gpu_info_collector_unittest_win.cc',
         '../content/renderer/active_notification_tracker_unittest.cc',
         '../content/renderer/audio_message_filter_unittest.cc',
         '../content/renderer/gpu_video_decoder_host_unittest.cc',
         '../content/renderer/media/audio_renderer_impl_unittest.cc',
-        '../content/renderer/p2p/p2p_transport_impl_unittest.cc',
         '../content/renderer/paint_aggregator_unittest.cc',
         '../testing/gtest_mac_unittest.mm',
         '../third_party/cld/encodings/compact_lang_det/compact_lang_det_unittest_small.cc',
         '../webkit/fileapi/file_system_dir_url_request_job_unittest.cc',
         '../webkit/fileapi/file_system_operation_write_unittest.cc',
         '../webkit/fileapi/file_system_url_request_job_unittest.cc',
       ],
       'conditions': [
+        ['p2p_apis==1', {
+          'sources': [
+            '../content/browser/renderer_host/p2p/socket_host_udp_unittest.cc',
+            '../content/renderer/p2p/p2p_transport_impl_unittest.cc',
+          ],
+        }],
         ['touchui==0', {
           'sources/': [
             ['exclude', '^browser/ui/webui/chromeos/login/'],
           ],
         }],
         ['chromeos==1', {
           'sources/': [
             # TODO(thestig) Enable PrintPreviewUIHTMLSource tests on CrOS when
             # print preview is enabled on CrOS.
             ['exclude', 'browser/notifications/desktop_notifications_unittest.cc'],
@@ skipping 1936 matching lines @@
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }
 
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