Record keep alive registry's state in stability instrumentation

components/browser_watcher/stability_debugging.cc

Index: components/browser_watcher/stability_debugging.cc
diff --git a/components/browser_watcher/stability_debugging.cc b/components/browser_watcher/stability_debugging.cc
index d382485f750a8d0b065876981632b35dc0e0f37f..3c8cc6492928043dbe0de2306bef4581e992e044 100644
--- a/components/browser_watcher/stability_debugging.cc
+++ b/components/browser_watcher/stability_debugging.cc
@@ -8,6 +8,15 @@
 
 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();