Record keep alive registry's state in stability instrumentation

components/browser_watcher/stability_debugging.cc

 // 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 "components/browser_watcher/stability_debugging.h"
 
 #include "base/debug/activity_tracker.h"
 
 namespace browser_watcher {
 
+void SetStabilityDataBool(base::StringPiece name, bool value) {
+  base::debug::GlobalActivityTracker* global_tracker =
+      base::debug::GlobalActivityTracker::Get();
+  if (!global_tracker)
+    return;  // Activity tracking isn't enabled.
+
+  global_tracker->process_data().SetBool(name, value);
+}
+
 void SetStabilityDataInt(base::StringPiece name, int64_t value) {
   base::debug::GlobalActivityTracker* global_tracker =
       base::debug::GlobalActivityTracker::Get();
   if (!global_tracker)
     return;  // Activity tracking isn't enabled.
 
   global_tracker->process_data().SetInt(name, value);
 }
 
 }  // namespace browser_watcher