Move ash specific cursor code to CursorManager.

ui/ui.gyp

Index: ui/ui.gyp
diff --git a/ui/ui.gyp b/ui/ui.gyp
index 660855f45b8d5d7c48eb9a68eafc66f5eafcff97..8a57dd1d1079e51a0e35e9e71c6c1fba0fc3dca3 100644
--- a/ui/ui.gyp
+++ b/ui/ui.gyp
@@ -137,6 +137,11 @@
         'base/cocoa/window_size_constants.mm',
         'base/cursor/cursor.cc',
         'base/cursor/cursor.h',
+        'base/cursor/cursor_loader.h',
+        'base/cursor/cursor_loader_win.cc',
+        'base/cursor/cursor_loader_win.h',
+        'base/cursor/cursor_loader_x11.cc',
+        'base/cursor/cursor_loader_x11.h',
         'base/cursor/cursor_win.cc',
         'base/cursor/cursor_x11.cc',
         'base/dialogs/base_shell_dialog.cc',
@@ -743,6 +748,9 @@
         }],
         ['toolkit_views==0', {
           'sources!': [
+            'base/cursor/cursor_loader_x11.cc',
+            'base/cursor/cursor_loader_x11.h',
+            'base/event.cc',
             'base/events/event.cc',
             'base/events/event.h',
             'base/x/events_x.cc',