Mac: Fix SDK 10.11 Compile errors after clang roll in r387792

chrome/browser/ui/app_list/app_list_service_mac.mm

 // 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.
 
 #import "chrome/browser/ui/app_list/app_list_service_mac.h"
 
 #include <ApplicationServices/ApplicationServices.h>
 #import <Cocoa/Cocoa.h>
 #include <stddef.h>
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/lazy_instance.h"
+#import "base/mac/foundation_util.h"
 #include "base/memory/singleton.h"
 #include "base/message_loop/message_loop.h"
 #import "chrome/browser/app_controller_mac.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile_attributes_entry.h"
 #include "chrome/browser/profiles/profile_attributes_storage.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/app_list/app_list_positioner.h"
 #include "chrome/browser/ui/app_list/app_list_service.h"
@@ skipping 407 matching lines @@
 }
 
 bool AppListServiceMac::IsAppListVisible() const {
   return [GetNativeWindow() isVisible] &&
       ![animation_controller_ isClosing];
 }
 
 void AppListServiceMac::EnableAppList(Profile* initial_profile,
                                       AppListEnableSource enable_source) {
   AppListServiceImpl::EnableAppList(initial_profile, enable_source);
-  AppController* controller = [NSApp delegate];
+  AppController* controller =
+      base::mac::ObjCCastStrict<AppController>([NSApp delegate]);
   [controller initAppShimMenuController];
 }
 
 void AppListServiceMac::CreateShortcut() {
   CreateAppListShim(GetProfilePath(
       g_browser_process->profile_manager()->user_data_dir()));
 }
 
 NSWindow* AppListServiceMac::GetAppListWindow() {
   return GetNativeWindow();
@@ skipping 126 matching lines @@
 
 - (void)animationDidEnd:(NSAnimation*)animation {
   content::BrowserThread::PostTask(
       content::BrowserThread::UI,
       FROM_HERE,
       base::Bind(&AppListServiceMac::WindowAnimationDidEnd,
                  base::Unretained(GetActiveInstance())));
 }
 
 @end