Merge "Inroduce UNIFORM_OPS sampling." into rvc-dev am: 0a7281e573 am: b486120d11

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11689592

Change-Id: Ibd47a5db43999b4c836940cbe4fd7389298b60d0
diff --git a/stats/atoms.proto b/stats/atoms.proto
index ca03343..02c0763 100644
--- a/stats/atoms.proto
+++ b/stats/atoms.proto
@@ -9694,6 +9694,7 @@
         UNIFORM = 1;
         RARELY_USED = 2;
         BOOT_TIME_SAMPLING = 3;
+        UNIFORM_OPS = 4;
     }
 
     // sampling strategy used to collect this message