Index: ios/chrome/app/memory_monitor.mm |
diff --git a/ios/chrome/app/memory_monitor.mm b/ios/chrome/app/memory_monitor.mm |
index 162b156662d46aa3e962b85535923f0e1c9b1caa..927afc6bf621ad4eb1f10ad43a20410bbf3e9874 100644 |
--- a/ios/chrome/app/memory_monitor.mm |
+++ b/ios/chrome/app/memory_monitor.mm |
@@ -17,6 +17,10 @@ |
#import "ios/chrome/browser/crash_report/breakpad_helper.h" |
#include "ios/web/public/web_thread.h" |
+#if !defined(__has_feature) || !__has_feature(objc_arc) |
+#error "This file requires ARC support." |
+#endif |
+ |
namespace ios_internal { |
void AsynchronousFreeMemoryMonitor() { |