Move common accelerator code from ash to ui/wm/core

ui/wm/wm.gyp

Index: ui/wm/wm.gyp
diff --git a/ui/wm/wm.gyp b/ui/wm/wm.gyp
index 1a8610285a713d6b8c0efca66e59eda4b8cb4c41..d3230a17015801911024c0320647ac74ae5295c3 100644
--- a/ui/wm/wm.gyp
+++ b/ui/wm/wm.gyp
@@ -26,13 +26,9 @@
         'WM_IMPLEMENTATION',
       ],
       'sources': [
-        'core/nested_accelerator_dispatcher_linux.cc',
-        'core/nested_accelerator_dispatcher_win.cc',
-        'core/nested_accelerator_dispatcher.cc',
-        'core/nested_accelerator_dispatcher.h',
-        'core/nested_accelerator_delegate.h',
-        'core/nested_accelerator_controller.cc',
-        'core/nested_accelerator_controller.h',
+        'core/accelerator_delegate.h',
+        'core/accelerator_filter.cc',
+        'core/accelerator_filter.h',
         'core/base_focus_rules.h',
         'core/base_focus_rules.cc',
         'core/base_focus_rules.h',
@@ -57,6 +53,13 @@
         'core/masked_window_targeter.h',
         'core/native_cursor_manager.h',
         'core/native_cursor_manager_delegate.h',
+        'core/nested_accelerator_dispatcher_linux.cc',
+        'core/nested_accelerator_dispatcher_win.cc',
+        'core/nested_accelerator_dispatcher.cc',
+        'core/nested_accelerator_dispatcher.h',
+        'core/nested_accelerator_delegate.h',
+        'core/nested_accelerator_controller.cc',
+        'core/nested_accelerator_controller.h',
         'core/shadow.cc',
         'core/shadow.h',
         'core/shadow_controller.cc',