DO NOT MERGE Add new media navigation keys.

Bug: 22059484
Change-Id: I587eb7622555194f18f403da583e3b70656a530e
diff --git a/include/input/InputEventLabels.h b/include/input/InputEventLabels.h
index 3962001..a7a9329 100644
--- a/include/input/InputEventLabels.h
+++ b/include/input/InputEventLabels.h
@@ -303,6 +303,10 @@
     DEFINE_KEYCODE(NAVIGATE_NEXT),
     DEFINE_KEYCODE(NAVIGATE_IN),
     DEFINE_KEYCODE(NAVIGATE_OUT),
+    DEFINE_KEYCODE(MEDIA_SKIP_FORWARD),
+    DEFINE_KEYCODE(MEDIA_SKIP_BACKWARD),
+    DEFINE_KEYCODE(MEDIA_STEP_FORWARD),
+    DEFINE_KEYCODE(MEDIA_STEP_BACKWARD),
 
     { NULL, 0 }
 };