From c7bef93af04397fd6988f7bb317da4f93bc0f798 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rub=C3=A9n=20Norte?= <rubennorte@meta.com>
Date: Wed, 31 Jan 2024 07:16:21 -0800
Subject: [PATCH] Rename performance.reactNativeStartupTiming as
 performance.rnStartupTiming (#42762)

Summary:
Pull Request resolved: https://github.com/facebook/react-native/pull/42762

This renames `performance.reactNativeStartupTiming` as `performance.rnStartupTiming` to align with the recommended vendor prefix for React Native.

This API is still private, so it's safe to rename.

Changelog: [internal]

Reviewed By: javache

Differential Revision: D53264515

fbshipit-source-id: 6e7a222901071594cac0ca8a0ac78e56e60ab132
---
 .../react-native/Libraries/WebPerformance/Performance.js    | 2 +-
 .../__tests__/__snapshots__/public-api-test.js.snap         | 2 +-
 .../js/examples/Performance/PerformanceApiExample.js        | 6 +-----
 3 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/packages/react-native/Libraries/WebPerformance/Performance.js b/packages/react-native/Libraries/WebPerformance/Performance.js
index a6e9d066804..e8c4c492cfd 100644
--- a/packages/react-native/Libraries/WebPerformance/Performance.js
+++ b/packages/react-native/Libraries/WebPerformance/Performance.js
@@ -141,7 +141,7 @@ export default class Performance {
   }
 
   // Startup metrics is not used in web, but only in React Native.
-  get reactNativeStartupTiming(): ReactNativeStartupTiming {
+  get rnStartupTiming(): ReactNativeStartupTiming {
     if (NativePerformance?.getReactNativeStartupTiming) {
       const {
         startTime,
diff --git a/packages/react-native/Libraries/__tests__/__snapshots__/public-api-test.js.snap b/packages/react-native/Libraries/__tests__/__snapshots__/public-api-test.js.snap
index 32f662953d2..29d3b8f5cc7 100644
--- a/packages/react-native/Libraries/__tests__/__snapshots__/public-api-test.js.snap
+++ b/packages/react-native/Libraries/__tests__/__snapshots__/public-api-test.js.snap
@@ -8976,7 +8976,7 @@ declare export class PerformanceMeasure extends PerformanceEntry {
 declare export default class Performance {
   eventCounts: EventCounts;
   get memory(): MemoryInfo;
-  get reactNativeStartupTiming(): ReactNativeStartupTiming;
+  get rnStartupTiming(): ReactNativeStartupTiming;
   mark(markName: string, markOptions?: PerformanceMarkOptions): PerformanceMark;
   clearMarks(markName?: string): void;
   measure(
diff --git a/packages/rn-tester/js/examples/Performance/PerformanceApiExample.js b/packages/rn-tester/js/examples/Performance/PerformanceApiExample.js
index 6c4e31726a0..427d6058640 100644
--- a/packages/rn-tester/js/examples/Performance/PerformanceApiExample.js
+++ b/packages/rn-tester/js/examples/Performance/PerformanceApiExample.js
@@ -27,8 +27,6 @@ function MemoryExample(): React.Node {
   const onGetMemoryInfo = useCallback(() => {
     // performance.memory is not included in bom.js yet.
     // Once we release the change in flow this can be removed.
-    // $FlowFixMe[prop-missing]
-    // $FlowFixMe[incompatible-call]
     setMemoryInfo(performance.memory);
   }, []);
   return (
@@ -58,9 +56,7 @@ function StartupTimingExample(): React.Node {
   const onGetStartupTiming = useCallback(() => {
     // performance.reactNativeStartupTiming is not included in bom.js yet.
     // Once we release the change in flow this can be removed.
-    // $FlowFixMe[prop-missing]
-    // $FlowFixMe[incompatible-call]
-    setStartUpTiming(performance.reactNativeStartupTiming);
+    setStartUpTiming(performance.rnStartupTiming);
   }, []);
   return (
     <RNTesterPage noScroll={true} title="performance.reactNativeStartupTiming">