SDL: emscripten: Proxy SDL_GetUsableDisplayBounds to the main thread.

SDL Commits
1 
From ea7d5307acfb1daf9af6104b60b75114b15bcd27 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Thu, 31 Mar 2022 14:11:52 -0400
Subject: [PATCH] emscripten: Proxy SDL_GetUsableDisplayBounds to the main
 thread.

---
 src/video/emscripten/SDL_emscriptenvideo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/video/emscripten/SDL_emscriptenvideo.c b/src/video/emscripten/SDL_emscriptenvideo.c
index f6ee1e7e5ed..4c6038f09ff 100644
--- a/src/video/emscripten/SDL_emscriptenvideo.c
+++ b/src/video/emscripten/SDL_emscriptenvideo.c
@@ -174,10 +174,10 @@ Emscripten_GetDisplayUsableBounds(_THIS, SDL_VideoDisplay * display, SDL_Rect *
     if (rect) {
         rect->x = 0;
         rect->y = 0;
-        rect->w = EM_ASM_INT_V({
+        rect->w = MAIN_THREAD_EM_ASM_INT({
             return window.innerWidth;
         });
-        rect->h = EM_ASM_INT_V({
+        rect->h = MAIN_THREAD_EM_ASM_INT({
             return window.innerHeight;
         });
     }