Remove Futures class, move methods to Future.

samples/solar3d/web/texture_manager.dart

 // 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.
 
 part of solar3d;
 
 class Texture {
   final int bindingPoint;
   WebGLTexture texture;
   Texture(this.bindingPoint);
@@ skipping 95 matching lines @@
         gl.texImage2D(sideTargets[i],
                       0,
                       WebGLRenderingContext.RGBA,
                       WebGLRenderingContext.RGBA,
                       WebGLRenderingContext.UNSIGNED_BYTE,
                       img);
         c.complete(img.src);
       });
       img.src = '$baseURL${sides[i]}';
     }
-    return Futures.wait(futures);
+    return Future.wait(futures);
   }
 
   void bind(String name) {
     Texture t = textures[name];
     if (t == null) {
       print('Cannot find texture $name');
       return;
     }
     gl.bindTexture(WebGLRenderingContext.TEXTURE_2D, null);
     gl.bindTexture(WebGLRenderingContext.TEXTURE_CUBE_MAP, null);
     gl.bindTexture(t.bindingPoint, t.texture);
   }
 }