Get the OpenGLUI emulator building again on the desktop. Mostly this is applying the changes here:

samples/openglui/emulator/emulator.gyp

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 # We should be able to make this work on Mac. We need:
 # -framework OpenGL -framework GLUT -lm -L /usr/X11/lib
 
 {
   'targets': [
     {
@@ skipping 62 matching lines @@
            {
              'link_settings': {
                'libraries': [
                  '-Wl,--start-group',
                  '-lskia_core',
                  '-lskia_effects',
                  '-lskia_gr',
                  '-lskia_images',
                  '-lskia_opts',
                  '-lskia_opts_ssse3',
+                 '-lskia_pdf',
                  '-lskia_ports',
                  '-lskia_sfnt',
                  '-lskia_skgr',
                  '-lskia_utils',
+                 '-lskia_views',
+                 '-lskia_xml',
                  '-Wl,--end-group',
                  '-lfontconfig',
                  '-lfreetype',
                  '-lGL',
                  '-lglut',
                  '-lGLU',
                  '-lpng',
                  '-lm',
                  '-lc' ],
               'ldflags': [
@@ skipping 11 matching lines @@
                '-framework GLUT',
                '-L /usr/X11/lib'
              ],
            }
         ]
       ]
     }
   ]
 }