Convert SigninTracker to use OAuth2TokenService notifications

chrome/browser/signin/profile_oauth2_token_service.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/signin/profile_oauth2_token_service.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/stl_util.h"
 #include "base/time/time.h"
@@ skipping 104 matching lines @@
     const GoogleServiceAuthError& error) {
   // Do not report connection errors as these are not actually auth errors.
   // We also want to avoid masking a "real" auth error just because we
   // subsequently get a transient network error.
   if (error.state() == GoogleServiceAuthError::CONNECTION_FAILED)
     return;
 
   if (error.state() != last_auth_error_.state()) {
     last_auth_error_ = error;
     signin_global_error_->AuthStatusChanged();
+
+    if (last_auth_error_.state() ==
+        GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS) {
+      TokenService* token_service =
+          TokenServiceFactory::GetForProfile(profile_);
+      token_service->ClearOAuth2Credentials();
+      DCHECK(!token_service->HasOAuthLoginToken());
+    }

[fgorski, 2013/08/29 22:31:12]

You should call RevokeCredentials for the respective account_id on the PO2TS
(for now it can be GetAccountId(profile_)), as the TokenService related code
will be removed, and you still want to have the clean up performed.

[Roger Tawa OOO till Jul 10th, 2013/08/30 02:25:14]

Yeah totally makes sense.  Done.

   }
 }
 
 void ProfileOAuth2TokenService::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   switch (type) {
     case chrome::NOTIFICATION_TOKEN_AVAILABLE: {
       TokenService::TokenAvailableDetails* tok_details =
@@ skipping 188 matching lines @@
     }
   }
 
   if (!old_login_token.empty() &&
       refresh_tokens_.count(GetAccountId(profile_)) == 0) {
     UpdateCredentials(GetAccountId(profile_), old_login_token);
   }
 
   FireRefreshTokensLoaded();
 }