Move the keyboard overlay view 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',
   },
 
@@ skipping 223 matching lines @@
         'wm/dialog_frame_view.cc',
         'wm/dialog_frame_view.h',
         'wm/event_client_impl.cc',
         'wm/event_client_impl.h',
         'wm/event_rewriter_event_filter.cc',
         'wm/event_rewriter_event_filter.h',
         'wm/frame_painter.cc',
         'wm/frame_painter.h',
         'wm/image_grid.cc',
         'wm/image_grid.h',
+        'wm/keyboard_overlay_delegate.cc',
+        'wm/keyboard_overlay_delegate.h',
+        'wm/keyboard_overlay_view.cc',
+        'wm/keyboard_overlay_view.h',
         'wm/panel_frame_view.cc',
         'wm/panel_frame_view.h',
         'wm/panel_layout_manager.cc',
         'wm/panel_layout_manager.h',
         'wm/panel_window_event_filter.cc',
         'wm/panel_window_event_filter.h',
         'wm/partial_screenshot_event_filter.cc',
         'wm/partial_screenshot_event_filter.h',
         'wm/partial_screenshot_view.cc',
         'wm/partial_screenshot_view.h',
@@ skipping 344 matching lines @@
             'shell/cocoa/app-Info.plist',
           ],
           'xcode_settings': {
             'INFOPLIST_FILE': 'shell/cocoa/app-Info.plist',
           },
         }],
       ],
     },
   ],
 }