Set process phases in the StackSamplingProfiler.

content/public/browser/browser_main_parts.h

Index: content/public/browser/browser_main_parts.h
diff --git a/content/public/browser/browser_main_parts.h b/content/public/browser/browser_main_parts.h
index 8b41253e0574dda3bba78cbea10c0dd9af315a70..96e40c895a23f0fdb3833b39a8df49fefb5bc2bb 100644
--- a/content/public/browser/browser_main_parts.h
+++ b/content/public/browser/browser_main_parts.h
@@ -91,6 +91,13 @@ class CONTENT_EXPORT BrowserMainParts {
   // Called as the very last part of shutdown, after threads have been
   // stopped and destroyed.
   virtual void PostDestroyThreads() {}
+
+  // Called when shutdown is about to begin.
+  virtual void PreShutdown() {}
+
+  // Called when shutdown is complete. This is the very last method called
+  // before "parts" is disconnected from the main runner.
+  virtual void PostShutdown() {}

[Mike Wittman, 2016/12/01 16:40:33]

Internal interfaces in Chrome are generally not added until they're needed, so
this function can be removed.

[bcwhite, 2016/12/01 17:59:54]

Done.

 };
 
 }  // namespace content