mac: Refactor browser_window_controller layout logic.

chrome/chrome_browser_ui.gypi

 # Copyright 2012 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.
 
 {
   'variables': {
     'chrome_browser_ui_non_ios_sources': [
       'browser/ui/accelerator_utils.h',
       'browser/ui/android/android_about_app_info.cc',
       'browser/ui/android/android_about_app_info.h',
@@ skipping 297 matching lines @@
       'browser/ui/cocoa/bookmarks/bookmark_tree_browser_cell.mm',
       'browser/ui/cocoa/browser/edit_search_engine_cocoa_controller.h',
       'browser/ui/cocoa/browser/edit_search_engine_cocoa_controller.mm',
       'browser/ui/cocoa/browser/zoom_bubble_controller.h',
       'browser/ui/cocoa/browser/zoom_bubble_controller.mm',
       'browser/ui/cocoa/browser_command_executor.h',
       'browser/ui/cocoa/browser_window_cocoa.h',
       'browser/ui/cocoa/browser_window_cocoa.mm',
       'browser/ui/cocoa/browser_window_controller.h',
       'browser/ui/cocoa/browser_window_controller.mm',
+      'browser/ui/cocoa/browser_window_layout.h',
+      'browser/ui/cocoa/browser_window_layout.mm',
       'browser/ui/cocoa/browser_window_controller_private.h',
       'browser/ui/cocoa/browser_window_controller_private.mm',
       'browser/ui/cocoa/browser_window_factory.mm',
       'browser/ui/cocoa/browser_window_utils.h',
       'browser/ui/cocoa/browser_window_utils.mm',
       'browser/ui/cocoa/bubble_combobox.h',
       'browser/ui/cocoa/bubble_combobox.mm',
       'browser/ui/cocoa/bubble_view.h',
       'browser/ui/cocoa/bubble_view.mm',
       'browser/ui/cocoa/certificate_viewer_mac.mm',
@@ skipping 2645 matching lines @@
         }],
         ['OS!="android" and OS!="ios"', {
           'dependencies': [
             '../device/bluetooth/bluetooth.gyp:device_bluetooth',
           ],
         }],
       ],
     },
   ],
 }