New Profile metric for Auth Errors.

components/signin/core/browser/signin_error_controller.h

Index: components/signin/core/browser/signin_error_controller.h
diff --git a/components/signin/core/browser/signin_error_controller.h b/components/signin/core/browser/signin_error_controller.h
index 77bd78d3751e8defd4b29beb26f7989669e668a1..88a8d3589090f0238bbb31b75912a922a40f251c 100644
--- a/components/signin/core/browser/signin_error_controller.h
+++ b/components/signin/core/browser/signin_error_controller.h
@@ -11,6 +11,8 @@
 #include "base/observer_list.h"
 #include "google_apis/gaia/google_service_auth_error.h"
 
+class SigninClient;
+
 // Keep track of auth errors and expose them to observers in the UI. Services
 // that wish to expose auth errors to the user should register an
 // AuthStatusProvider to report their current authentication state, and should
@@ -41,7 +43,7 @@ class SigninErrorController {
     virtual void OnErrorChanged() = 0;
   };
 
-  SigninErrorController();
+  SigninErrorController(SigninClient* signin_client);
   ~SigninErrorController();
 
   // Adds a provider which the SigninErrorController object will start querying