Include files from webrtc/.. paths in common_audio/

BUG=1662
R=tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1535005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4107 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/common_audio/signal_processing/randomization_functions.c b/webrtc/common_audio/signal_processing/randomization_functions.c
index 88a37fa..e2711fd 100644
--- a/webrtc/common_audio/signal_processing/randomization_functions.c
+++ b/webrtc/common_audio/signal_processing/randomization_functions.c
@@ -20,7 +20,7 @@
  *
  */
 
-#include "signal_processing_library.h"
+#include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
 
 static const int16_t kRandNTable[] = {
     9178,    -7260,       40,    10189,     4894,    -3531,   -13779,    14764,