From 9a03d36af407c2f1736405bd0754378205dfb5ef Mon Sep 17 00:00:00 2001
From: Jonas Jenwald <jonas.jenwald@gmail.com>
Date: Sun, 25 Sep 2022 10:41:06 +0200
Subject: [PATCH] Remove some unused code from the `_queueLoadingCallback`
 method (PR 3477 follow-up)

The existing `loadingContext` class-property can be simplified slightly, since we've not been using the `id`-property on the requests ever since PR 3477 (which landed nine years ago).
Furthermore, by default we're also not even using that code-path now since the Font Loading API will always be used when available.
---
 src/display/font_loader.js | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/src/display/font_loader.js b/src/display/font_loader.js
index c67699053..c8998218b 100644
--- a/src/display/font_loader.js
+++ b/src/display/font_loader.js
@@ -167,10 +167,7 @@ if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
   FontLoader = class GenericFontLoader extends BaseFontLoader {
     constructor(params) {
       super(params);
-      this.loadingContext = {
-        requests: [],
-        nextRequestId: 0,
-      };
+      this.loadingRequests = [];
       this.loadTestFontId = 0;
     }
 
@@ -201,20 +198,19 @@ if (typeof PDFJSDev !== "undefined" && PDFJSDev.test("MOZCENTRAL")) {
         request.done = true;
 
         // Sending all completed requests in order of how they were queued.
-        while (context.requests.length > 0 && context.requests[0].done) {
-          const otherRequest = context.requests.shift();
+        while (loadingRequests.length > 0 && loadingRequests[0].done) {
+          const otherRequest = loadingRequests.shift();
           setTimeout(otherRequest.callback, 0);
         }
       }
 
-      const context = this.loadingContext;
+      const { loadingRequests } = this;
       const request = {
-        id: `pdfjs-font-loading-${context.nextRequestId++}`,
         done: false,
         complete: completeRequest,
         callback,
       };
-      context.requests.push(request);
+      loadingRequests.push(request);
       return request;
     }