Merge the openglui samples into one.

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': [
     {
       'target_name': 'mobile_emulator_sample',
       'type': 'none',
       'conditions': [
         ['OS=="linux" or OS=="mac"',
           {
             'dependencies': [
-              '../../runtime/dart-runtime.gyp:emulator_embedder',
+              '../../../runtime/dart-runtime.gyp:emulator_embedder',
               'mobile_emulator',
               'copy_dart_files'
             ]
           }
         ]
       ]
     },
     {
       'target_name': 'copy_dart_files',
       'type': 'none',
       'copies': [ {
         'destination': '<(PRODUCT_DIR)',
         'files': [
-           '../../runtime/embedders/openglui/common/gl.dart',
-           '../../samples/simplegl/web/raytrace.dart'
+           '../../../runtime/embedders/openglui/common/gl.dart',
+           '../src/raytrace.dart'
         ],
       }],
     },
     {
       'target_name': 'mobile_emulator',
       'type': 'executable',
       'dependencies': [
-        '../../runtime/dart-runtime.gyp:emulator_embedder',
+        '../../../runtime/dart-runtime.gyp:emulator_embedder',
       ],
       'include_dirs': [
-         '../../runtime',
+         '../../../runtime',
          '/usr/X11/include',
        ],
        'sources': [
           'mobile_emulator_sample.cc',
        ],
        'conditions': [
          ['OS=="linux"',
            {
              'link_settings': {
                'libraries': [ '-lGL', '-lglut', '-lGLU', '-lm', '-lc' ],
              },
            }
          ],
          ['OS=="mac"',
            {
              'ldflags': [
                '-framework OpenGL',
                '-framework GLUT',
                '-L /usr/X11/lib'
              ],
            }
         ]
       ]
     }
   ]
 }