Enable the -Wundef warning for clang

webrtc/voice_engine/test/auto_test/fixtures/before_initialization_fixture.h

 /*
  *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef SRC_VOICE_ENGINE_MAIN_TEST_AUTO_TEST_STANDARD_TEST_BASE_H_
 #define SRC_VOICE_ENGINE_MAIN_TEST_AUTO_TEST_STANDARD_TEST_BASE_H_
 
 #include "webrtc/common_types.h"
 #include "webrtc/engine_configurations.h"
 #include "webrtc/voice_engine/include/voe_audio_processing.h"
 #include "webrtc/voice_engine/include/voe_base.h"
 #include "webrtc/voice_engine/include/voe_codec.h"
 #include "webrtc/voice_engine/include/voe_errors.h"
 #include "webrtc/voice_engine/include/voe_external_media.h"
 #include "webrtc/voice_engine/include/voe_file.h"
 #include "webrtc/voice_engine/include/voe_hardware.h"
 #include "webrtc/voice_engine/include/voe_neteq_stats.h"
 #include "webrtc/voice_engine/include/voe_network.h"
 #include "webrtc/voice_engine/include/voe_rtp_rtcp.h"
 #include "webrtc/voice_engine/include/voe_video_sync.h"
 #include "webrtc/voice_engine/include/voe_volume_control.h"
 #include "webrtc/voice_engine/test/auto_test/voe_test_common.h"
 
-#include "testing/gmock/include/gmock/gmock.h"
-#include "testing/gtest/include/gtest/gtest.h"
+#include "webrtc/test/gmock.h"
+#include "webrtc/test/gtest.h"
 
 // This convenient fixture sets up all voice engine interfaces automatically for
 // use by testing subclasses. It allocates each interface and releases it once
 // which means that if a tests allocates additional interfaces from the voice
 // engine and forgets to release it, this test will fail in the destructor.
 // It will not call any init methods.
 //
 // Implementation note:
 // The interface fetching is done in the constructor and not SetUp() since
 // this relieves our subclasses from calling SetUp in the superclass if they
@@ skipping 16 matching lines @@
   webrtc::VoEAudioProcessing* voe_apm_;
   webrtc::VoENetwork*         voe_network_;
   webrtc::VoEFile*            voe_file_;
   webrtc::VoEVideoSync*       voe_vsync_;
   webrtc::VoEHardware*        voe_hardware_;
   webrtc::VoEExternalMedia*   voe_xmedia_;
   webrtc::VoENetEqStats*      voe_neteq_stats_;
 };
 
 #endif  // SRC_VOICE_ENGINE_MAIN_TEST_AUTO_TEST_STANDARD_TEST_BASE_H_