Pass time since profile was loaded and request count on each ListAccount request to Gaia.

components/signin/core/browser/gaia_cookie_manager_service.h

Index: components/signin/core/browser/gaia_cookie_manager_service.h
diff --git a/components/signin/core/browser/gaia_cookie_manager_service.h b/components/signin/core/browser/gaia_cookie_manager_service.h
index ae4246422c185e88fd3d9f3f17a7e5b7c2f945f2..0229b448b908a715661a04279421d2928991a11f 100644
--- a/components/signin/core/browser/gaia_cookie_manager_service.h
+++ b/components/signin/core/browser/gaia_cookie_manager_service.h
@@ -327,6 +327,11 @@ class GaiaCookieManagerService : public KeyedService,
 
   bool list_accounts_stale_;
 
+  // The time when the profile was loaded and used to compute the time passed
+  // between the moment the profile was loaded and the moment a new list
+  // account request is started.
+  base::Time profile_load_time_;
+
   DISALLOW_COPY_AND_ASSIGN(GaiaCookieManagerService);
 };