New Profile metric for Auth Errors.

chrome/browser/profiles/profile_metrics.h

Index: chrome/browser/profiles/profile_metrics.h
diff --git a/chrome/browser/profiles/profile_metrics.h b/chrome/browser/profiles/profile_metrics.h
index 1361dcdf1c3e8d66fce6a831dafe2fae0a259f4c..a86eef9d5c78fef3b7d841de3f1a02280029d891 100644
--- a/chrome/browser/profiles/profile_metrics.h
+++ b/chrome/browser/profiles/profile_metrics.h
@@ -6,10 +6,12 @@
 #define CHROME_BROWSER_PROFILES_PROFILE_METRICS_H_
 
 #include <stddef.h>
+
 #include <string>
 
 #include "base/basictypes.h"
 #include "chrome/browser/signin/signin_header_helper.h"
+#include "google_apis/gaia/google_service_auth_error.h"
 
 class Profile;
 class ProfileManager;
@@ -26,6 +28,7 @@ class ProfileMetrics {
     size_t supervised;
     size_t unused;
     size_t gaia_icon;
+    size_t auth_errors[GoogleServiceAuthError::State::NUM_STATES] = {0};
 
     ProfileCounts()
         : total(0), signedin(0), supervised(0), unused(0), gaia_icon(0) {}