Pre-emptive build fix

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@151764 0039d316-1c4b-4281-b951-d872f2087c98

ui/views/views.gyp

@@ -443,6 +443,9 @@
         }],
         ['use_aura==0 or OS!="win"', {
           'sources!': [
+            'widget/hwnd_message_handler.cc',
+            'widget/hwnd_message_handler.h',
+            'widget/hwnd_message_handler_delegate.h',
             'widget/widget_message_filter.cc',
             'widget/widget_message_filter.h',
           ],