Load shelf preferences from ChromeLauncherController::AttachProfile.

chrome/browser/ui/ash/launcher/chrome_launcher_controller.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/ui/ash/launcher/chrome_launcher_controller.h"
 
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/extensions/extension_app_icon_loader.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/arc/arc_app_icon_loader.h"
@@ skipping 130 matching lines @@
       base::MakeUnique<extensions::ExtensionAppIconLoader>(
           profile_, extension_misc::EXTENSION_ICON_SMALL, this);
   app_icon_loaders_.push_back(std::move(extension_app_icon_loader));
 
   if (arc::ArcSessionManager::IsAllowedForProfile(profile_)) {
     std::unique_ptr<AppIconLoader> arc_app_icon_loader =
         base::MakeUnique<ArcAppIconLoader>(
             profile_, extension_misc::EXTENSION_ICON_SMALL, this);
     app_icon_loaders_.push_back(std::move(arc_app_icon_loader));
   }
+
+  SetShelfBehaviorsFromPrefs();
 }
 
 void ChromeLauncherController::OnShelfCreated(int64_t display_id) {
   if (!ConnectToShelfController())
     return;
 
   // The pref helper functions return default values for invalid display ids.
   PrefService* prefs = profile_->GetPrefs();
   shelf_controller_->SetAlignment(
       ash::launcher::GetShelfAlignmentPref(prefs, display_id), display_id);
@@ skipping 20 matching lines @@
   // TODO(msw): Avoid handling this pref change and forwarding the value to ash.
   ash::launcher::SetShelfAutoHideBehaviorPref(profile_->GetPrefs(), display_id,
                                               auto_hide);
 }
 
 void ChromeLauncherController::OnAppImageUpdated(const std::string& app_id,
                                                  const gfx::ImageSkia& image) {
   // Implemented by subclasses; this should not be called.
   NOTREACHED();
 }