Moved CreateNativeAppWindow from AppWindow::Delegate to AppsClient.

chrome/browser/ui/cocoa/apps/chrome_app_window_delegate_cocoa.mm

Index: chrome/browser/ui/cocoa/apps/chrome_app_window_delegate_cocoa.mm
diff --git a/chrome/browser/ui/cocoa/apps/chrome_app_window_delegate_cocoa.mm b/chrome/browser/ui/cocoa/apps/chrome_app_window_delegate_cocoa.mm
deleted file mode 100644
index 0ede37d8d866c5a47ef0ed536b1760afe3773143..0000000000000000000000000000000000000000
--- a/chrome/browser/ui/cocoa/apps/chrome_app_window_delegate_cocoa.mm
+++ /dev/null
@@ -1,14 +0,0 @@
-// Copyright 2014 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/apps/chrome_app_window_delegate.h"
-
-#import "chrome/browser/ui/cocoa/apps/native_app_window_cocoa.h"
-
-// static
-apps::NativeAppWindow* ChromeAppWindowDelegate::CreateNativeAppWindowImpl(
-    apps::AppWindow* app_window,
-    const apps::AppWindow::CreateParams& params) {
-  return new NativeAppWindowCocoa(app_window, params);
-}