Refactored OpenGL embedder that works on Android, Mac or Linux.

samples/android_sample/android_sample.gyp

Index: samples/android_sample/android_sample.gyp
===================================================================
--- samples/android_sample/android_sample.gyp	(revision 16976)
+++ samples/android_sample/android_sample.gyp	(working copy)
@@ -12,6 +12,8 @@
             'type': 'none',
             'dependencies': [
               '../../runtime/dart-runtime.gyp:android_embedder',
+              'copy_embedder',
+              'copy_extension',
             ],
             'actions': [
               # TODO(gram) - this should have a debug and release version.
@@ -26,7 +28,28 @@
                 'action': [ 'ant', 'debug' ]
               }
             ]
-          }
+          },
+          {
+            'target_name': 'copy_embedder',
+            'type': 'none',
+            'copies': [ {
+              # TODO(gram) - this should vary based on architecture.
+              'destination': 'libs/x86',
+              'files': [
+                '<(PRODUCT_DIR)/lib.target/libandroid_embedder.so'
+              ],
+            }],
+          },
+          {
+            'target_name': 'copy_extension',
+            'type': 'none',
+            'copies': [ {
+              'destination': 'assets/dart',
+              'files': [
+                '../../runtime/embedders/openglui/common/extension.dart'
+              ],
+            }],
+          },
         ]
       }
     ]