Remove remote tree host and some related input and metro_driver code

win8/metro_driver/metro_driver.gyp

 # Copyright (c) 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.
 {
   'conditions': [
     ['OS=="win"', {
       'variables': {
         'chromium_code': 1,
       },
       'includes': [
@@ skipping 47 matching lines @@
             '../../ui/events/events.gyp:events',
             '../../ui/metro_viewer/metro_viewer.gyp:metro_viewer_messages',
             '../../ui/gfx/gfx.gyp:gfx',
             '../../ui/gfx/gfx.gyp:gfx_geometry',
             '../../url/url.gyp:url_lib',
             'metro_driver_version_resources',
           ],
           'sources': [
             'display_properties.cc',
             'display_properties.h',
-            'metro_driver.cc',
-            'metro_driver.h',
-            'metro_driver_win7.cc',
             'stdafx.h',
             'winrt_utils.cc',
             'winrt_utils.h',
             '<(SHARED_INTERMEDIATE_DIR)/metro_driver/metro_driver_dll_version.rc',
           ],
           'conditions': [
             ['use_aura==1', {
-              'dependencies': [
-                '../win8.gyp:metro_viewer_constants',
-              ],
               'sources': [
-                'chrome_app_view_ash.cc',
-                'chrome_app_view_ash.h',
                 'direct3d_helper.cc',
                 'direct3d_helper.h',
-                'file_picker_ash.cc',
-                'file_picker_ash.h',
               ],
               'includes': [
                 'ime/ime.gypi',
               ],
             }, {  # use_aura!=1
               'sources': [
                 'chrome_app_view.cc',
                 'chrome_app_view.h',
                 'chrome_url_launch_handler.cc',
                 'chrome_url_launch_handler.h',
                 'devices_handler.cc',
                 'devices_handler.h',
-                'file_picker.cc',
-                'file_picker.h',
                 'metro_dialog_box.cc',
                 'metro_dialog_box.h',
                 'print_document_source.cc',
                 'print_document_source.h',
                 'print_handler.cc',
                 'print_handler.h',
                 'secondary_tile.cc',
                 'secondary_tile.h',
                 'settings_handler.cc',
                 'settings_handler.h',
@@ skipping 29 matching lines @@
             'run_all_unittests.cc',
             'winrt_utils.cc',
             'winrt_utils.h',
             'winrt_utils_unittest.cc',
           ],
         },
       ],
     },],
   ],
 }