Add a new app API to enable watchdog behavior restarts in kiosk apps

extensions/browser/extension_function_histogram_value.h

 // Copyright 2014 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.
 
 #ifndef EXTENSIONS_BROWSER_EXTENSION_FUNCTION_HISTOGRAM_VALUE_H_
 #define EXTENSIONS_BROWSER_EXTENSION_FUNCTION_HISTOGRAM_VALUE_H_
 
 namespace extensions {
 namespace functions {
 
@@ skipping 1172 matching lines @@
   BLUETOOTHLOWENERGY_CREATESERVICE,
   BLUETOOTHLOWENERGY_CREATECHARACTERISTIC,
   BLUETOOTHLOWENERGY_CREATEDESCRIPTOR,
   BLUETOOTHLOWENERGY_REGISTERSERVICE,
   BLUETOOTHLOWENERGY_UNREGISTERSERVICE,
   BLUETOOTHLOWENERGY_SENDREQUESTRESPONSE,
   BLUETOOTHLOWENERGY_NOTIFYCHARACTERISTICVALUECHANGED,
   BLUETOOTHLOWENERGY_REMOVESERVICE,
   AUTOFILLPRIVATE_GETADDRESSLIST,
   AUTOFILLPRIVATE_GETCREDITCARDLIST,
+  RUNTIME_RESTARTONWATCHDOG,
   // Last entry: Add new entries above, then run:
   // python tools/metrics/histograms/update_extension_histograms.py
   ENUM_BOUNDARY
 };
 
 }  // namespace functions
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_EXTENSION_FUNCTION_HISTOGRAM_VALUE_H_