Chromium roll (https://codereview.chromium.org/976353002)

base/prefs/base_prefs_switches.cc

Index: base/prefs/base_prefs_switches.cc
diff --git a/base/prefs/base_prefs_switches.cc b/base/prefs/base_prefs_switches.cc
new file mode 100644
index 0000000000000000000000000000000000000000..304248b786777a403027d4c5e629cd4fa1a75ef2
--- /dev/null
+++ b/base/prefs/base_prefs_switches.cc
@@ -0,0 +1,12 @@
+// Copyright 2015 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 "base/prefs/base_prefs_switches.h"
+
+namespace switches {
+
+// Pretty-prints pref JSON files.
+const char kPrettyPrintPrefs[] = "pretty-print-prefs";
+
+}  // namespace switches