Revert "Relax performance test tolerance"

This reverts commit 096d78302f46052b3ab8d5bc335e4fd43d04add8.

Change-Id: I6ee9c84071cd32ea48ceb91e4eb99dfa879faa17
(cherry picked from commit 3aedb6afec701188e0144ac4ba68e0b9cdf3afcd)
diff --git a/common/device-side/util/src/com/android/compatibility/common/util/MediaPerfUtils.java b/common/device-side/util/src/com/android/compatibility/common/util/MediaPerfUtils.java
index 23d7e96..469e99a 100644
--- a/common/device-side/util/src/com/android/compatibility/common/util/MediaPerfUtils.java
+++ b/common/device-side/util/src/com/android/compatibility/common/util/MediaPerfUtils.java
@@ -31,10 +31,10 @@
     private static final int MOVING_AVERAGE_NUM_FRAMES = 10;
     private static final int MOVING_AVERAGE_WINDOW_MS = 1000;
 
-    // allow a variance of 2.5x for measured frame rates (e.g. 40% of lower-limit to 2.5x of
-    // upper-limit of the published values). Also allow an extra 20% margin. This also acts as
+    // allow a variance of 2x for measured frame rates (e.g. half of lower-limit to double of
+    // upper-limit of the published values). Also allow an extra 10% margin. This also acts as
     // a limit for the size of the published rates (e.g. upper-limit / lower-limit <= tolerance).
-    private static final double FRAMERATE_TOLERANCE = 2.5 * 1.2;
+    private static final double FRAMERATE_TOLERANCE = 2.0 * 1.1;
 
     /*
      *  ------------------ HELPER METHODS FOR ACHIEVABLE FRAME RATES ------------------