Aura: Add --aura-laptop-mode to fill the workspace with a single window.

ui/aura_shell/aura_shell.gyp

 # Copyright (c) 2011 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': {
     'chromium_code': 1,
   },
 
   'targets': [
@@ skipping 37 matching lines @@
         'root_window_event_filter.cc',
         'root_window_event_filter.h',
         'root_window_layout_manager.cc',
         'root_window_layout_manager.h',
         'drag_drop_controller.cc',
         'drag_drop_controller.h',
         'drag_image_view.cc',
         'drag_image_view.h',
         'image_grid.cc',
         'image_grid.h',
+        'laptop_mode_layout_manager.cc',
+        'laptop_mode_layout_manager.h',
         'launcher/app_launcher_button.cc',
         'launcher/app_launcher_button.h',
         'launcher/launcher.cc',
         'launcher/launcher.h',
         'launcher/launcher_model.cc',
         'launcher/launcher_model.h',
         'launcher/launcher_model_observer.h',
         'launcher/launcher_types.h',
         'launcher/launcher_view.cc',
         'launcher/launcher_view.h',
@@ skipping 150 matching lines @@
         'examples/widgets.cc',
         'examples/window_type_launcher.cc',
         'examples/window_type_launcher.h',
         '<(SHARED_INTERMEDIATE_DIR)/ui/gfx/gfx_resources.rc',
         '<(SHARED_INTERMEDIATE_DIR)/ui/ui_resources/ui_resources.rc',
         '<(SHARED_INTERMEDIATE_DIR)/ui/ui_resources_standard/ui_resources_standard.rc',
       ],
     },
   ],
 }