Android improvements:

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',
               'mobile_emulator',
-              'copy_dart_files'
+              'copy_dart_files',
+              'decode_png'
             ]
           }
         ]
       ]
     },
     {
       'target_name': 'copy_dart_files',
       'type': 'none',
       'copies': [ {
         'destination': '<(PRODUCT_DIR)',
         'files': [
            '../../../runtime/embedders/openglui/common/gl.dart',
            '../src/openglui_raytrace.dart',
            '../src/openglui_canvas_tests.dart'
         ],
       }],
     },
     {
+      'target_name': 'decode_png',
+      'type': 'none',
+      'actions': [
+        {
+          'action_name': 'decode',
+          'inputs': [
+            '../src/chrome.hex'
+          ],
+          'outputs': [
+            '<(PRODUCT_DIR)/chrome.png',
+          ],
+          'action': [ 'xxd', '-r', '../src/chrome.hex',
+                      '<(PRODUCT_DIR)/chrome.png' ]
+        }
+      ]
+    },
+    {
       'target_name': 'mobile_emulator',
       'type': 'executable',
       'dependencies': [
         '../../../runtime/dart-runtime.gyp:emulator_embedder',
       ],
       'include_dirs': [
          '../../../runtime',
          '/usr/X11/include',
        ],
        'sources': [
           'mobile_emulator_sample.cc',
        ],
        'conditions': [
          ['OS=="linux"',
            {
              'link_settings': {
                'libraries': [
                  '-Wl,--start-group',
+                 '-lskia_core',
                  '-lskia_effects',
+                 '-lskia_gr',
                  '-lskia_images',
-                 '-lskia_core',
                  '-lskia_opts',
                  '-lskia_opts_ssse3',
                  '-lskia_ports',
                  '-lskia_sfnt',
+                 '-lskia_skgr',
                  '-lskia_utils',
-                 '-lskia_gr',
-                 '-lskia_skgr',
                  '-Wl,--end-group',
                  '-lfreetype',
                  '-lGL',
                  '-lglut',
                  '-lGLU',
+                 '-lpng',
                  '-lm',
                  '-lc' ],
               'ldflags': [
                 '-Wall',
                 '-g',
                 # TODO(gram): handle release mode.
                 '-Lthird_party/skia-desktop/trunk/out/Debug',
               ],
              },
            }
          ],
          ['OS=="mac"',
            {
              'ldflags': [
                '-framework OpenGL',
                '-framework GLUT',
                '-L /usr/X11/lib'
              ],
            }
         ]
       ]
     }
   ]
 }