[ObjC ARC] Converts ios/chrome/browser/ui/webui/history:history to ARC.Automatically generated AR…

ios/chrome/browser/ui/webui/history/history_ui.mm

Index: ios/chrome/browser/ui/webui/history/history_ui.mm
diff --git a/ios/chrome/browser/ui/webui/history/history_ui.mm b/ios/chrome/browser/ui/webui/history/history_ui.mm
index 35ccec1b27536d1bdfcbbca2343e09ebe2e3cb88..d56463b0dd4fc3745be820e69806b695b1bd4ce0 100644
--- a/ios/chrome/browser/ui/webui/history/history_ui.mm
+++ b/ios/chrome/browser/ui/webui/history/history_ui.mm
@@ -29,6 +29,10 @@
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 static const char kStringsJsFile[] = "strings.js";
 static const char kHistoryJsFile[] = "history.js";
 static const char kOtherDevicesJsFile[] = "other_devices.js";