Replace IS_CHROMEOS_ASH with IS_CHROMEOS in chrome [2/N].

This is part of Lacros sunset. Since Lacros is gone, the two macros
mean the same thing.

Bug: 354842935
Change-Id: I6cc76c2d6a22be2d3f981c5313660f13311f61df
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6326714
Reviewed-by: Georg Neis <[email protected]>
Commit-Queue: Yuta Hijikata <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1428678}
diff --git a/chrome/browser/renderer_preferences_util.cc b/chrome/browser/renderer_preferences_util.cc
index e6c3a05..4679192 100644
--- a/chrome/browser/renderer_preferences_util.cc
+++ b/chrome/browser/renderer_preferences_util.cc
@@ -13,11 +13,10 @@
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "build/build_config.h"
-#include "build/chromeos_buildflags.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/net/convert_explicitly_allowed_network_ports_pref.h"
 #include "chrome/browser/privacy_sandbox/tracking_protection_settings_factory.h"
-#if BUILDFLAG(IS_CHROMEOS_ASH)
+#if BUILDFLAG(IS_CHROMEOS)
 #include "chrome/browser/ash/login/demo_mode/demo_session.h"
 #endif
 #include "chrome/browser/profiles/profile.h"