Disable ash tests on Windows that rely on multiple displays or display resizing

ash/ash.gyp

Index: ash/ash.gyp
diff --git a/ash/ash.gyp b/ash/ash.gyp
index e95d815da40972617f97ae908f84b09ffe8a5f53..047332cac2ca6446fc342e3f82a4cb009574a765 100644
--- a/ash/ash.gyp
+++ b/ash/ash.gyp
@@ -620,6 +620,8 @@
             ['exclude', 'drag_drop/drag_drop_controller_unittest.cc'],
           # TODO(zork): fix this test to build on Windows. See: crosbug.com/26906
             ['exclude', 'focus_cycler_unittest.cc'],
+            # All tests for multiple displays: not supported on Windows Ash.
+            ['exclude', 'wm/drag_window_resizer_unittest.cc'],
           ],
         }],
         ['OS=="mac"', {