Add new media navigation keys.

Bug: 22059484
Change-Id: I7d85a5c3bd1bbe07ebb50edfc0a65bf25ee6ca9c
diff --git a/include/input/InputEventLabels.h b/include/input/InputEventLabels.h
index 606e8d9..502912e 100644
--- a/include/input/InputEventLabels.h
+++ b/include/input/InputEventLabels.h
@@ -311,6 +311,10 @@
     DEFINE_KEYCODE(DPAD_DOWN_LEFT),
     DEFINE_KEYCODE(DPAD_UP_RIGHT),
     DEFINE_KEYCODE(DPAD_DOWN_RIGHT),
+    DEFINE_KEYCODE(MEDIA_SKIP_FORWARD),
+    DEFINE_KEYCODE(MEDIA_SKIP_BACKWARD),
+    DEFINE_KEYCODE(MEDIA_STEP_FORWARD),
+    DEFINE_KEYCODE(MEDIA_STEP_BACKWARD),
 
     { NULL, 0 }
 };