Record MetricsService's execution phase to the stability file

components/browser_watcher/stability_debugging_win.cc

Index: components/browser_watcher/stability_debugging_win.cc
diff --git a/components/browser_watcher/stability_debugging_win.cc b/components/browser_watcher/stability_debugging_win.cc
index 3eb4e47b2affb3eac0e7f5a1995dcb4781810dbe..ccc2a416f5be218587e018585735fa2b683b614f 100644
--- a/components/browser_watcher/stability_debugging_win.cc
+++ b/components/browser_watcher/stability_debugging_win.cc
@@ -6,6 +6,7 @@
 
 #include <string>
 
+#include "base/debug/activity_tracker.h"
 #include "base/feature_list.h"
 #include "base/files/file.h"
 #include "base/metrics/persistent_memory_allocator.h"
@@ -85,4 +86,13 @@ void MarkStabilityFileForDeletion(const base::FilePath& user_data_dir) {
                                       base::File::FLAG_DELETE_ON_CLOSE);
 }
 
+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.
+  base::debug::ActivityUserData& global_user_data = global_tracker->user_data();

[bcwhite, 2016/12/01 16:35:20]

Blank line above.

[manzagop (departed), 2016/12/05 15:44:04]

Done.

+  global_user_data.SetInt(name, value);

[bcwhite, 2016/12/01 16:35:20]

Skip assigning it to a variable and just call SetInt(...) directly.

[manzagop (departed), 2016/12/05 15:44:04]

Done.

+}
+
 }  // namespace browser_watcher