Allow signin to continue even if sync is disabled by policy.

chrome/browser/ui/sync/one_click_signin_helper_unittest.cc

 // Copyright (c) 2012 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 "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/content_settings/cookie_settings.h"
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prefs/pref_service_syncable.h"
@@ skipping 519 matching lines @@
 
   EnableOneClick(true);
   EXPECT_TRUE(OneClickSigninHelper::CanOffer(
       web_contents(), OneClickSigninHelper::CAN_OFFER_FOR_ALL,
       "user@gmail.com", NULL));
 
   // Simulate a policy disabling sync by writing kSyncManaged directly.
   profile_->GetTestingPrefService()->SetManagedPref(
       prefs::kSyncManaged, base::Value::CreateBooleanValue(true));
 
-  EXPECT_FALSE(OneClickSigninHelper::CanOffer(
+  // Should still offer even if sync is disabled by policy.
+  EXPECT_TRUE(OneClickSigninHelper::CanOffer(
       web_contents(), OneClickSigninHelper::CAN_OFFER_FOR_ALL,
       "user@gmail.com", NULL));
 }
 
 // Should not crash if a helper instance is not associated with an incognito
 // web contents.
 TEST_F(OneClickSigninHelperTest, ShowInfoBarUIThreadIncognito) {
   CreateSigninManager(true, "");
   OneClickSigninHelper* helper =
       OneClickSigninHelper::FromWebContents(web_contents());
@@ skipping 132 matching lines @@
                 valid_gaia_url_, "", &request_, io_data.get()));
 }
 
 TEST_F(OneClickSigninHelperIOTest, CanOfferOnIOThreadDisabledByPolicy) {
   scoped_ptr<TestProfileIOData> io_data(CreateTestProfileIOData(false));
   EXPECT_EQ(OneClickSigninHelper::CAN_OFFER,
             OneClickSigninHelper::CanOfferOnIOThreadImpl(
                 valid_gaia_url_, "", &request_, io_data.get()));
 
   // Simulate a policy disabling sync by writing kSyncManaged directly.
+  // We should still offer to sign in the browser.
   profile_->GetTestingPrefService()->SetManagedPref(
       prefs::kSyncManaged, base::Value::CreateBooleanValue(true));
-  EXPECT_EQ(OneClickSigninHelper::DONT_OFFER,
+  EXPECT_EQ(OneClickSigninHelper::CAN_OFFER,
             OneClickSigninHelper::CanOfferOnIOThreadImpl(
                 valid_gaia_url_, "", &request_, io_data.get()));
 }