Introduce profile for lock screen apps

chrome/browser/metrics/chrome_metrics_service_client.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/metrics/chrome_metrics_service_client.h"
 
 #include <stddef.h>
 
 #include <set>
 #include <utility>
@@ skipping 918 matching lines @@
     RegisterForProfileEvents(profile);
   }
 }
 
 void ChromeMetricsServiceClient::RegisterForProfileEvents(Profile* profile) {
   // Register chrome://ukm handler
   content::URLDataSource::Add(
       profile, new ukm::debug::DebugPage(base::Bind(
                    &BindableGetUkmService, weak_ptr_factory_.GetWeakPtr())));
 #if defined(OS_CHROMEOS)
-  // Ignore the signin profile for sync disables / history deletion.
-  if (chromeos::ProfileHelper::IsSigninProfile(profile))
+  // Ignore the signin and lock screen app profile for sync disables / history
+  // deletion.
+  if (chromeos::ProfileHelper::IsSigninProfile(profile) ||
+      chromeos::ProfileHelper::IsLockScreenAppProfile(profile)) {
     return;
+  }
 #endif
   history::HistoryService* history_service =
       HistoryServiceFactory::GetForProfile(profile,
                                            ServiceAccessType::IMPLICIT_ACCESS);
   ObserveServiceForDeletions(history_service);
   browser_sync::ProfileSyncService* sync =
       ProfileSyncServiceFactory::GetInstance()->GetForProfile(profile);
   if (sync)
     ObserveServiceForSyncDisables(static_cast<syncer::SyncService*>(sync));
 }
@@ skipping 53 matching lines @@
     ukm_service_->Purge();
     ukm_service_->ResetClientId();
   }
   // Signal service manager to enable/disable UKM based on new state.
   UpdateRunningServices();
 }
 
 bool ChromeMetricsServiceClient::IsHistorySyncEnabledOnAllProfiles() {
   return SyncDisableObserver::IsHistorySyncEnabledOnAllProfiles();
 }