Upstream Chrome on iOS source code [1/11].

ios/chrome/app/startup/setup_debugging.mm

Index: ios/chrome/app/startup/setup_debugging.mm
diff --git a/ios/chrome/app/startup/setup_debugging.mm b/ios/chrome/app/startup/setup_debugging.mm
new file mode 100644
index 0000000000000000000000000000000000000000..b54a123d6c0f5f92f869f444fe65bc383e0b0088
--- /dev/null
+++ b/ios/chrome/app/startup/setup_debugging.mm
@@ -0,0 +1,20 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ios/chrome/app/startup/setup_debugging.h"
+
+#include "base/logging.h"
+#include "components/crash/core/common/objc_zombie.h"
+
+@implementation SetupDebugging
+
++ (void)setUpDebuggingOptions {
+// Enable the zombie treadmill on simulator builds.
+// TODO(crbug.com/663390): Consider enabling this on device builds too.
+#if TARGET_IPHONE_SIMULATOR
+  DCHECK(ObjcEvilDoers::ZombieEnable(true, 10000));
+#endif
+}
+
+@end