Remove unused ShelfModelObserver::ShelfStatusChanged()

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 <stddef.h>
 
 #include <vector>
 
@@ skipping 1189 matching lines @@
   const ash::ShelfItem& item = model_->items()[target_index];
   // We remember the moved item position if it is either pinnable or
   // it is the app list with the alternate shelf layout.
   if ((HasShelfIDToAppIDMapping(item.id) && IsPinned(item.id)) ||
       item.type == ash::TYPE_APP_LIST)
     PersistPinnedState();
 }
 
 void ChromeLauncherController::ShelfItemChanged(
     int index,
-    const ash::ShelfItem& old_item) {
-}
-
-void ChromeLauncherController::ShelfStatusChanged() {
-}
+    const ash::ShelfItem& old_item) {}
 
 void ChromeLauncherController::ActiveUserChanged(
     const std::string& user_email) {
   // Store the order of running applications for the user which gets inactive.
   RememberUnpinnedRunningApplicationOrder();
   // Coming here the default profile is already switched. All profile specific
   // resources get released and the new profile gets attached instead.
   ReleaseProfile();
   // When coming here, the active user has already be changed so that we can
   // set it as active.
@@ skipping 107 matching lines @@
   MaybePropagatePrefToLocal(prefs,
                             prefs::kShelfAlignmentLocal,
                             prefs::kShelfAlignment);
   MaybePropagatePrefToLocal(prefs,
                             prefs::kShelfAutoHideBehaviorLocal,
                             prefs::kShelfAutoHideBehavior);
 }
 
 void ChromeLauncherController::OnAppSyncUIStatusChanged() {
   if (app_sync_ui_state_->status() == AppSyncUIState::STATUS_SYNCING)
-    model_->SetStatus(ash::ShelfModel::STATUS_LOADING);
+    model_->set_status(ash::ShelfModel::STATUS_LOADING);
   else
-    model_->SetStatus(ash::ShelfModel::STATUS_NORMAL);
+    model_->set_status(ash::ShelfModel::STATUS_NORMAL);
 }
 
 void ChromeLauncherController::ExtensionEnableFlowFinished() {
   LaunchApp(extension_enable_flow_->extension_id(),
             ash::LAUNCH_FROM_UNKNOWN,
             ui::EF_NONE);
   extension_enable_flow_.reset();
 }
 
 void ChromeLauncherController::ExtensionEnableFlowAborted(bool user_initiated) {
@@ skipping 894 matching lines @@
 
 AppIconLoader* ChromeLauncherController::GetAppIconLoaderForApp(
     const std::string& app_id) {
   for (const auto& app_icon_loader : app_icon_loaders_) {
     if (app_icon_loader->CanLoadImageForApp(app_id))
       return app_icon_loader.get();
   }
 
   return nullptr;
 }