Merge "Fixes a NPE in the DisplayResolutionTracker."
diff --git a/core/java/com/android/internal/jank/DisplayResolutionTracker.java b/core/java/com/android/internal/jank/DisplayResolutionTracker.java
index fd58468..72a1bac 100644
--- a/core/java/com/android/internal/jank/DisplayResolutionTracker.java
+++ b/core/java/com/android/internal/jank/DisplayResolutionTracker.java
@@ -96,6 +96,9 @@
 
     private void updateDisplay(int displayId) {
         DisplayInfo info = mManager.getDisplayInfo(displayId);
+        if (info == null) {
+            return;
+        }
         @Resolution int resolution = getResolution(info);
 
         synchronized (mLock) {