References to includes in third_party should be relative, not absolute.

BUG=
R=henrik.lundin@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/9989004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5704 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_coding/neteq4/audio_classifier.h b/webrtc/modules/audio_coding/neteq4/audio_classifier.h
index 7451d3e..e64e110 100644
--- a/webrtc/modules/audio_coding/neteq4/audio_classifier.h
+++ b/webrtc/modules/audio_coding/neteq4/audio_classifier.h
@@ -14,9 +14,9 @@
 #if defined(__cplusplus)
 extern "C" {
 #endif
-#include "third_party/opus/src/celt/celt.h"
-#include "third_party/opus/src/src/analysis.h"
-#include "third_party/opus/src/src/opus_private.h"
+#include "celt.h"
+#include "analysis.h"
+#include "opus_private.h"
 #if defined(__cplusplus)
 }
 #endif