Added step that saves OAuth2 tokens fetched through policy into TokenService.

chrome/browser/chromeos/login/oauth2_login_manager.h

Index: chrome/browser/chromeos/login/oauth2_login_manager.h
diff --git a/chrome/browser/chromeos/login/oauth2_login_manager.h b/chrome/browser/chromeos/login/oauth2_login_manager.h
index f283054da210a403a58214c553c5a226bf973f3b..1e55f04d20ecf23ac55844449cb3c70f0bf3fedf 100644
--- a/chrome/browser/chromeos/login/oauth2_login_manager.h
+++ b/chrome/browser/chromeos/login/oauth2_login_manager.h
@@ -76,6 +76,11 @@ class OAuth2LoginManager : public OAuthLoginManager,
   // Removes legacy tokens form OAuth1 flow.
   void RemoveLegacyTokens();
 
+  // Records OAuth2 tokens fetched through either policy fetcher or cookies-to-
+  // token exchange into TokenService.
+  void StoreOAuth2Tokens(
+      const GaiaAuthConsumer::ClientOAuthResult& oauth2_tokens);
+
   // Loads previously stored OAuth2 tokens and kicks off its validation.
   void LoadAndVerifyOAuth2Tokens();