Fixes out of bounds error in ActivityMetricsLogger.

Add new entry to window mode lookup table.

Bug: 150649664
Test: presubmit

Change-Id: Iad68a1dc028bb47d3f62ad5fc2aa792057aad431
diff --git a/services/core/java/com/android/server/wm/ActivityMetricsLogger.java b/services/core/java/com/android/server/wm/ActivityMetricsLogger.java
index 4fea36c..fb29f9a 100644
--- a/services/core/java/com/android/server/wm/ActivityMetricsLogger.java
+++ b/services/core/java/com/android/server/wm/ActivityMetricsLogger.java
@@ -134,7 +134,7 @@
     // Preallocated strings we are sending to tron, so we don't have to allocate a new one every
     // time we log.
     private static final String[] TRON_WINDOW_STATE_VARZ_STRINGS = {
-            "window_time_0", "window_time_1", "window_time_2", "window_time_3"};
+            "window_time_0", "window_time_1", "window_time_2", "window_time_3", "window_time_4"};
 
     private int mWindowState = WINDOW_STATE_STANDARD;
     private long mLastLogTimeSecs;