Add new refresh key constant.

Bug: 64149858
Bug: 64662317
Test: Builds and manual tests with Chromebook.

Change-Id: I865d657ee7d78b5e45f642e786d26a65a14f49e1
diff --git a/core/java/android/view/KeyEvent.java b/core/java/android/view/KeyEvent.java
index ed2b8b6..a597405 100644
--- a/core/java/android/view/KeyEvent.java
+++ b/core/java/android/view/KeyEvent.java
@@ -806,8 +806,10 @@
     public static final int KEYCODE_SYSTEM_NAVIGATION_RIGHT = 283;
     /** Key code constant: Show all apps */
     public static final int KEYCODE_ALL_APPS = 284;
+    /** Key code constant: Refresh key. */
+    public static final int KEYCODE_REFRESH = 285;
 
-    private static final int LAST_KEYCODE = KEYCODE_ALL_APPS;
+    private static final int LAST_KEYCODE = KEYCODE_REFRESH;
 
     // NOTE: If you add a new keycode here you must also add it to:
     //  isSystem()