From 4a8202423936f7ed5a5ba8af7cca745c57cd8262 Mon Sep 17 00:00:00 2001
From: Masatoshi Kimura <VYV03354@nifty.ne.jp>
Date: Wed, 26 Jul 2023 08:52:51 +0000
Subject: [PATCH] Bug 1844908 - Remove pre-Win10-specific codepath from
 memory/. r=glandium

Differential Revision: https://phabricator.services.mozilla.com/D184296
---
 memory/volatile/VolatileBufferWindows.cpp | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/memory/volatile/VolatileBufferWindows.cpp b/memory/volatile/VolatileBufferWindows.cpp
index 6615f89299e6e..fbd4eec07a0e3 100644
--- a/memory/volatile/VolatileBufferWindows.cpp
+++ b/memory/volatile/VolatileBufferWindows.cpp
@@ -6,7 +6,6 @@
 #include "mozilla/Assertions.h"
 #include "mozilla/DebugOnly.h"
 #include "mozilla/mozalloc.h"
-#include "mozilla/WindowsVersion.h"
 
 #include <windows.h>
 
@@ -40,11 +39,6 @@ bool VolatileBuffer::Init(size_t aSize, size_t aAlignment) {
     goto heap_alloc;
   }
 
-  static bool sUndoSupported = IsWin8OrLater();
-  if (!sUndoSupported) {
-    goto heap_alloc;
-  }
-
   mBuf = VirtualAllocEx(GetCurrentProcess(), nullptr, mSize,
                         MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
   if (mBuf) {