First pass at cleaning up html lib warnings from the analyzer.

sdk/lib/web_gl/dartium/web_gl_dartium.dart

 library dart.dom.web_gl;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:_internal' hide deprecated;
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:nativewrappers';
 import 'dart:typed_data';
 // DO NOT EDIT
@@ skipping 2972 matching lines @@
   /**
    * Updates a sub-rectangle of the currently bound texture to [data].
    *
    * [data] can be either an [ImageElement], a
    * [CanvasElement], a [VideoElement], or an [ImageData] object.
    *
    * To use [texSubImage2d] with a TypedData object, use [texSubImage2dTyped].
    *
    */
   void texSubImage2DUntyped(int targetTexture, int levelOfDetail, 
-      int internalFormat, int format, int type, data) {
-    texSubImage2D(targetTexture, levelOfDetail, internalFormat,
+      int xOffset, int yOffset, int format, int type, data) {
+    texSubImage2D(targetTexture, levelOfDetail, xOffset, yOffset,
         format, type, data);
   }
 
   /**
    * Updates a sub-rectangle of the currently bound texture to [data].
    */
   void texSubImage2DTyped(int targetTexture, int levelOfDetail,
-      int internalFormat, int width, int height, int border, int format,
+      int xOffset, int yOffset, int width, int height, int format,
       int type, TypedData data) {
-    texSubImage2D(targetTexture, levelOfDetail, internalFormat,
-        width, height, border, format, type, data);
+    texSubImage2D(targetTexture, levelOfDetail, xOffset, yOffset,
+        width, height, format, type, data);
   }
 }
 // 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.
 
 // WARNING: Do not edit - generated code.
 
 
 @DocsEditable()
@@ skipping 66 matching lines @@
 
 @DocsEditable()
 @DomName('WebGLVertexArrayObjectOES')
 // http://www.khronos.org/registry/webgl/extensions/OES_vertex_array_object/
 @Experimental() // experimental
 class VertexArrayObject extends NativeFieldWrapperClass2 {
   // To suppress missing implicit constructor warnings.
   factory VertexArrayObject._() { throw new UnsupportedError("Not supported"); }
 
 }