fix ActivityMetricsLogger counter names

Change-Id: I49e4785fdecfdbb60fc168539e654bcb7847d1dd

services/core/java/com/android/server/am/ActivityMetricsLogger.java

@@ -26,7 +26,7 @@ class ActivityMetricsLogger {
     // 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 = {
-            "tron_varz_window_time_0", "tron_varz_window_time_1", "tron_varz_window_time_2"};
+            "window_time_0", "window_time_1", "window_time_2"};
 
     private int mWindowState = WINDOW_STATE_STANDARD;
     private long mLastLogTimeSecs;