diff --git a/include/utils/ThreadDefs.h b/include/utils/ThreadDefs.h
index a8f8eb3..9711c13 100644
--- a/include/utils/ThreadDefs.h
+++ b/include/utils/ThreadDefs.h
@@ -20,6 +20,7 @@
 #include <stdint.h>
 #include <sys/types.h>
 #include <system/graphics.h>
+#include <system/thread_defs.h>
 
 // ---------------------------------------------------------------------------
 // C API
@@ -32,53 +33,6 @@
 
 typedef int (*android_thread_func_t)(void*);
 
-enum {
-    /*
-     * ***********************************************
-     * ** Keep in sync with android.os.Process.java **
-     * ***********************************************
-     * 
-     * This maps directly to the "nice" priorities we use in Android.
-     * A thread priority should be chosen inverse-proportionally to
-     * the amount of work the thread is expected to do. The more work
-     * a thread will do, the less favorable priority it should get so that 
-     * it doesn't starve the system. Threads not behaving properly might
-     * be "punished" by the kernel.
-     * Use the levels below when appropriate. Intermediate values are
-     * acceptable, preferably use the {MORE|LESS}_FAVORABLE constants below.
-     */
-    ANDROID_PRIORITY_LOWEST         =  19,
-
-    /* use for background tasks */
-    ANDROID_PRIORITY_BACKGROUND     =  10,
-    
-    /* most threads run at normal priority */
-    ANDROID_PRIORITY_NORMAL         =   0,
-    
-    /* threads currently running a UI that the user is interacting with */
-    ANDROID_PRIORITY_FOREGROUND     =  -2,
-
-    /* the main UI thread has a slightly more favorable priority */
-    ANDROID_PRIORITY_DISPLAY        =  -4,
-    
-    /* ui service treads might want to run at a urgent display (uncommon) */
-    ANDROID_PRIORITY_URGENT_DISPLAY =  HAL_PRIORITY_URGENT_DISPLAY,
-    
-    /* all normal audio threads */
-    ANDROID_PRIORITY_AUDIO          = -16,
-    
-    /* service audio threads (uncommon) */
-    ANDROID_PRIORITY_URGENT_AUDIO   = -19,
-
-    /* should never be used in practice. regular process might not 
-     * be allowed to use this level */
-    ANDROID_PRIORITY_HIGHEST        = -20,
-
-    ANDROID_PRIORITY_DEFAULT        = ANDROID_PRIORITY_NORMAL,
-    ANDROID_PRIORITY_MORE_FAVORABLE = -1,
-    ANDROID_PRIORITY_LESS_FAVORABLE = +1,
-};
-
 #ifdef __cplusplus
 } // extern "C"
 #endif