Introdcue AshWindowTreeHost and move ash/chrome specific code in WTH to ash.

ash/ash.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.
 
 {
   'variables': {
     'chromium_code': 1,
     'grit_out_dir': '<(SHARED_INTERMEDIATE_DIR)/chrome',
   },
   'includes': [
@@ skipping 166 matching lines @@
         'frame/caption_buttons/maximize_bubble_controller.cc',
         'frame/caption_buttons/maximize_bubble_controller.h',
         'frame/caption_buttons/maximize_bubble_controller_bubble.cc',
         'frame/caption_buttons/maximize_bubble_controller_bubble.h',
         'frame/custom_frame_view_ash.cc',
         'frame/custom_frame_view_ash.h',
         'frame/frame_border_hit_test_controller.cc',
         'frame/frame_border_hit_test_controller.h',
         'frame/default_header_painter.cc',
         'frame/default_header_painter.h',
-            'frame/frame_util.cc',
-            'frame/frame_util.h',
+        'frame/frame_util.cc',
+        'frame/frame_util.h',
         'frame/header_painter.h',
         'frame/header_painter_util.cc',
         'frame/header_painter_util.h',
         'gpu_support.h',
         'gpu_support_stub.cc',
         'gpu_support_stub.h',
         'high_contrast/high_contrast_controller.cc',
         'high_contrast/high_contrast_controller.h',
-        'host/window_tree_host_factory.cc',
-        'host/window_tree_host_factory.h',
-        'host/window_tree_host_factory_win.cc',
+        'host/ash_remote_window_tree_host_win.cc',
+        'host/ash_remote_window_tree_host_win.h',
+        'host/ash_window_tree_host.h',
+        'host/ash_window_tree_host_ozone.cc',
+        'host/ash_window_tree_host_win.cc',
+        'host/ash_window_tree_host_x11.cc',
+        'host/ash_window_tree_host_x11.h',
+        'host/root_window_transformer.h',
+        'host/transformer_helper.cc',
+        'host/transformer_helper.h',
         'ime/candidate_view.cc',
         'ime/candidate_view.h',
         'ime/candidate_window_view.cc',
         'ime/candidate_window_view.h',
         'ime/infolist_window.cc',
         'ime/infolist_window.h',
         'ime/input_method_menu_item.cc',
         'ime/input_method_menu_item.h',
         'ime/input_method_menu_manager.cc',
         'ime/input_method_menu_manager.h',
@@ skipping 479 matching lines @@
         }],
         ['use_x11!=1', {
           'sources/': [
             ['exclude', 'accelerators/key_hold_detector.cc'],
             ['exclude', 'accelerators/key_hold_detector.h'],
             ['exclude', 'accelerators/magnifier_key_scroller.cc'],
             ['exclude', 'accelerators/magnifier_key_scroller.h'],
             ['exclude', 'accelerators/spoken_feedback_toggler.cc'],
             ['exclude', 'accelerators/spoken_feedback_toggler.h'],
           ],
+        }, { # else: use_x11==1
+          'dependencies': [
+            '../build/linux/system.gyp:xfixes',
+           ],
         }],
         ['chromeos==1', {
           'dependencies': [
             '../chromeos/chromeos.gyp:chromeos',
             # Ash #includes power_supply_properties.pb.h directly.
             '../chromeos/chromeos.gyp:power_manager_proto',
             '../device/bluetooth/bluetooth.gyp:device_bluetooth',
             '../ui/chromeos/ui_chromeos.gyp:ui_chromeos',
             '../ui/display/display.gyp:display',
           ],
@@ skipping 196 matching lines @@
         'display/screen_position_controller_unittest.cc',
         'drag_drop/drag_drop_controller_unittest.cc',
         'drag_drop/drag_drop_tracker_unittest.cc',
         'extended_desktop_unittest.cc',
         'focus_cycler_unittest.cc',
         'frame/caption_buttons/alternate_frame_size_button_unittest.cc',
         'frame/caption_buttons/frame_caption_button_container_view_unittest.cc',
         'frame/caption_buttons/frame_maximize_button_unittest.cc',
         'frame/custom_frame_view_ash_unittest.cc',
         'frame/default_header_painter_unittest.cc',
+        'host/ash_window_tree_host_x11_unittest.cc',
         'ime/candidate_window_view_unittest.cc',
         'ime/input_method_menu_item_unittest.cc',
         'ime/input_method_menu_manager_unittest.cc',
         'keyboard_overlay/keyboard_overlay_delegate_unittest.cc',
         'keyboard_overlay/keyboard_overlay_view_unittest.cc',
         'magnifier/magnification_controller_unittest.cc',
         'root_window_controller_unittest.cc',
         'screen_util_unittest.cc',
         'screensaver/screensaver_view_unittest.cc',
         'session_state_delegate_stub.cc',
@@ skipping 233 matching lines @@
         }],
         ['chromeos==1', {
           'dependencies': [
             '../device/bluetooth/bluetooth.gyp:device_bluetooth',
           ],
         }],
       ],
     },
   ],
 }