Profiler-instrumentation of the startup time.

content/public/app/content_main_delegate.h

Index: content/public/app/content_main_delegate.h
diff --git a/content/public/app/content_main_delegate.h b/content/public/app/content_main_delegate.h
index 6191d7815e6841b2c857b9f93f8f98bb56329d35..6bd725d0f5ce7481203e959707c7d0555af0951b 100644
--- a/content/public/app/content_main_delegate.h
+++ b/content/public/app/content_main_delegate.h
@@ -76,6 +76,11 @@ class CONTENT_EXPORT ContentMainDelegate {
   virtual void ZygoteForked() {}
 #endif  // OS_MACOSX
 
+  // TODO(vadimt, yiyaoliu): Remove this function once crbug.com/453640 is
+  // fixed.
+  // Returns whether or not profiler recording should be enabled.
+  virtual bool ShouldEnableProfilerRecording();
+
  protected:
   friend class ContentClientInitializer;