Removing unused GetAppIDForShelfIDConst.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_impl.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_impl.h"
 
 #include <stddef.h>
 
 #include <vector>
 
@@ skipping 1078 matching lines @@
   return id_to_item_controller_map_.find(id) !=
          id_to_item_controller_map_.end();
 }
 
 const std::string& ChromeLauncherControllerImpl::GetAppIDForShelfID(
     ash::ShelfID id) {
   LauncherItemController* controller = GetLauncherItemController(id);
   return controller ? controller->app_id() : base::EmptyString();
 }
 
-bool ChromeLauncherControllerImpl::GetAppIDForShelfIDConst(
-    ash::ShelfID id,
-    std::string* app_id) const {
-  auto app = id_to_item_controller_map_.find(id);
-  if (app == id_to_item_controller_map_.end()) {
-    return false;
-  } else {
-    *app_id = app->second->app_id();
-    return true;
-  }
-}
-
 void ChromeLauncherControllerImpl::PinAppWithID(const std::string& app_id) {
   if (GetPinnable(app_id) == AppListControllerDelegate::PIN_EDITABLE)
     DoPinAppWithID(app_id);
   else
     NOTREACHED();
 }
 
 bool ChromeLauncherControllerImpl::IsAppPinned(const std::string& app_id) {
   for (IDToItemControllerMap::const_iterator i =
            id_to_item_controller_map_.begin();
@@ skipping 773 matching lines @@
 
 AppIconLoader* ChromeLauncherControllerImpl::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;
 }