From e9f657f2bd1679887bbdf69b1093887547cc3b2b Mon Sep 17 00:00:00 2001
From: Pieter De Baets <pieterdb@fb.com>
Date: Thu, 22 Jun 2017 09:46:26 -0700
Subject: [PATCH] Stop using Map in JSTimers

Reviewed By: fromcelticpark

Differential Revision: D5292912

fbshipit-source-id: a14552b895d586cf24627cc457069d9909b2ecc2
---
 Libraries/Core/Timers/JSTimers.js          | 12 ++++++------
 Libraries/Core/Timers/JSTimersExecution.js |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/Libraries/Core/Timers/JSTimers.js b/Libraries/Core/Timers/JSTimers.js
index 88b7ae38c..7373a024f 100644
--- a/Libraries/Core/Timers/JSTimers.js
+++ b/Libraries/Core/Timers/JSTimers.js
@@ -145,10 +145,10 @@ const JSTimers = {
     const id = _allocateCallback(
       timeout != null ?
         deadline => {
-          const timeoutId = JSTimersExecution.requestIdleCallbackTimeouts.get(id);
+          const timeoutId = JSTimersExecution.requestIdleCallbackTimeouts[id];
           if (timeoutId) {
             JSTimers.clearTimeout(timeoutId);
-            JSTimersExecution.requestIdleCallbackTimeouts.delete(id);
+            JSTimersExecution.requestIdleCallbackTimeouts[id];
           }
           return func(deadline);
         } :
@@ -164,12 +164,12 @@ const JSTimers = {
           JSTimersExecution.requestIdleCallbacks.splice(index, 1);
           JSTimersExecution.callTimer(id, performanceNow(), true);
         }
-        JSTimersExecution.requestIdleCallbackTimeouts.delete(id);
+        delete JSTimersExecution.requestIdleCallbackTimeouts[id];
         if (JSTimersExecution.requestIdleCallbacks.length === 0) {
           Timing.setSendIdleEvents(false);
         }
       }, timeout);
-      JSTimersExecution.requestIdleCallbackTimeouts.set(id, timeoutId);
+      JSTimersExecution.requestIdleCallbackTimeouts[id] = timeoutId;
     }
     return id;
   },
@@ -181,10 +181,10 @@ const JSTimers = {
       JSTimersExecution.requestIdleCallbacks.splice(index, 1);
     }
 
-    const timeoutId = JSTimersExecution.requestIdleCallbackTimeouts.get(timerID);
+    const timeoutId = JSTimersExecution.requestIdleCallbackTimeouts[timerID];
     if (timeoutId) {
       JSTimers.clearTimeout(timeoutId);
-      JSTimersExecution.requestIdleCallbackTimeouts.delete(timerID);
+      delete JSTimersExecution.requestIdleCallbackTimeouts[timerID];
     }
 
     if (JSTimersExecution.requestIdleCallbacks.length === 0) {
diff --git a/Libraries/Core/Timers/JSTimersExecution.js b/Libraries/Core/Timers/JSTimersExecution.js
index b3ece8aaf..02b38bb7e 100644
--- a/Libraries/Core/Timers/JSTimersExecution.js
+++ b/Libraries/Core/Timers/JSTimersExecution.js
@@ -45,7 +45,7 @@ const JSTimersExecution = {
   timerIDs: ([] : Array<?number>),
   immediates: [],
   requestIdleCallbacks: [],
-  requestIdleCallbackTimeouts: (new Map() : Map<number, number>),
+  requestIdleCallbackTimeouts: ({} : {[number]: number}),
   identifiers: ([] : Array<null | {methodName: string}>),
 
   errors: (null : ?Array<Error>),