Implement newly designed sign-in related histograms for desktop platorms.

chrome/browser/ui/sync/one_click_signin_sync_observer.cc

 // Copyright 2014 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/ui/sync/one_click_signin_sync_observer.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 61 matching lines @@
     // middle of any WebUI handler code.
     base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE, base::Bind(&CloseTab, base::Unretained(web_contents())));
   } else {
     if (sync_service->IsFirstSetupInProgress()) {
       // Sync setup has not completed yet. Wait for it to complete.
       return;
     }
 
     if (sync_service->IsSyncActive() &&
-        signin::GetSourceForPromoURL(continue_url_)
-            != signin_metrics::SOURCE_SETTINGS) {
+        signin::GetAccessPointForPromoURL(continue_url_) !=
+            signin_metrics::AccessPoint::ACCESS_POINT_SETTINGS) {
       // TODO(isherman): Having multiple settings pages open can cause issues
       // redirecting after Sync is set up: http://crbug.com/355885
       LoadContinueUrl();
     }
   }
 
   sync_service->RemoveObserver(this);
   delete this;
 }
 
@@ skipping 11 matching lines @@
       Profile::FromBrowserContext(web_contents->GetBrowserContext());
   return ProfileSyncServiceFactory::GetForProfile(profile);
 }
 
 // static
 void OneClickSigninSyncObserver::DeleteObserver(
     base::WeakPtr<OneClickSigninSyncObserver> observer) {
   if (observer)
     delete observer.get();
 }