arc: ARC loading progress should not be shown when started from OOBE.

chrome/browser/chromeos/login/screens/arc_terms_of_service_screen.cc

 // Copyright 2016 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/chromeos/login/screens/arc_terms_of_service_screen.h"
 
+#include "chrome/browser/chromeos/arc/arc_session_manager.h"
 #include "chrome/browser/chromeos/login/screens/base_screen_delegate.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 #include "chrome/browser/metrics/metrics_reporting_state.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/common/pref_names.h"
 #include "components/prefs/pref_service.h"
 
 namespace chromeos {
 
@@ skipping 31 matching lines @@
 void ArcTermsOfServiceScreen::OnSkip() {
   ApplyTerms(false);
 }
 
 void ArcTermsOfServiceScreen::OnAccept() {
   ApplyTerms(true);
 }
 
 void ArcTermsOfServiceScreen::ApplyTerms(bool accepted) {
   Profile* profile = ProfileManager::GetActiveUserProfile();
+
+  if (accepted) {
+    arc::ArcSessionManager* session_manager = arc::ArcSessionManager::Get();
+    DCHECK_EQ(session_manager->profile(), profile);
+    if (session_manager->support_host())
+      session_manager->support_host()->SetSilentMode();
+  }
+
   profile->GetPrefs()->SetBoolean(prefs::kArcTermsAccepted, accepted);
   profile->GetPrefs()->SetBoolean(prefs::kArcEnabled, accepted);
 
   Finish(BaseScreenDelegate::ARC_TERMS_OF_SERVICE_FINISHED);
 }
 
 void ArcTermsOfServiceScreen::OnActorDestroyed(
     ArcTermsOfServiceScreenActor* actor) {
   DCHECK_EQ(actor, actor_);
   actor_ = nullptr;
 }
 
 }  // namespace chromeos