Use 'field' syntax in dart:dom interfaces.

client/dom/generated/src/interface/WebGLRenderingContext.dart

 // Copyright (c) 2011, 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.
 
 // WARNING: Do not edit - generated code.
 
 interface WebGLRenderingContext extends CanvasRenderingContext {
 
   static final int ACTIVE_ATTRIBUTES = 0x8B89;
 
@@ skipping 582 matching lines @@
   static final int VERTEX_ATTRIB_ARRAY_STRIDE = 0x8624;
 
   static final int VERTEX_ATTRIB_ARRAY_TYPE = 0x8625;
 
   static final int VERTEX_SHADER = 0x8B31;
 
   static final int VIEWPORT = 0x0BA2;
 
   static final int ZERO = 0;
 
-  int get drawingBufferHeight();
+  final int drawingBufferHeight;
 
-  int get drawingBufferWidth();
+  final int drawingBufferWidth;
 
   void activeTexture(int texture);
 
   void attachShader(WebGLProgram program, WebGLShader shader);
 
   void bindAttribLocation(WebGLProgram program, int index, String name);
 
   void bindBuffer(int target, WebGLBuffer buffer);
 
   void bindFramebuffer(int target, WebGLFramebuffer framebuffer);
@@ skipping 251 matching lines @@
   void vertexAttrib3fv(int indx, Float32Array values);
 
   void vertexAttrib4f(int indx, num x, num y, num z, num w);
 
   void vertexAttrib4fv(int indx, Float32Array values);
 
   void vertexAttribPointer(int indx, int size, int type, bool normalized, int stride, int offset);
 
   void viewport(int x, int y, int width, int height);
 }