Add account_id to signin manager notifications.

chrome/browser/metrics/signin_status_metrics_provider.h

Index: chrome/browser/metrics/signin_status_metrics_provider.h
diff --git a/chrome/browser/metrics/signin_status_metrics_provider.h b/chrome/browser/metrics/signin_status_metrics_provider.h
index 71caef8d31dcce3e5d2a940fb0434a114f6ad358..7de70ef266bedb65177d60d9bb56a349c5a415a1 100644
--- a/chrome/browser/metrics/signin_status_metrics_provider.h
+++ b/chrome/browser/metrics/signin_status_metrics_provider.h
@@ -73,9 +73,11 @@ class SigninStatusMetricsProvider : public metrics::MetricsProvider,
   virtual void SigninManagerShutdown(SigninManagerBase* manager) OVERRIDE;
 
   // SigninManagerBase::Observer:
-  virtual void GoogleSigninSucceeded(const std::string& username,
+  virtual void GoogleSigninSucceeded(const std::string& account_id,
+                                     const std::string& username,
                                      const std::string& password) OVERRIDE;
-  virtual void GoogleSignedOut(const std::string& username) OVERRIDE;
+  virtual void GoogleSignedOut(const std::string& account_id,
+                               const std::string& username) OVERRIDE;
 
   // Obtain sign-in status and add observers.
   void Initialize();