Tidying up.

samples/o3d-webgl/draw_context.js

 /*
  * Copyright 2010, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 17 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 
 /**
  * The DrawContext defines the parameters used for a particular drawing pass.
  * It contains two 4-by-4 matrix params, view and
  * projection. These correspond to the viewing and projection transformation
  * matrices.
- * 
+ *
  * @param {!o3d.Matrix4} opt_view The view matrix for this DrawContext.
  * @param {!o3d.Matrix4} opt_projection The projection matrix
  *     for this DrawContext.
  * @constructor
  */
 o3d.DrawContext = function(opt_view, opt_projection) {
   o3d.ParamObject.call(this);
 
   /**
    * The view matrix represents the viewing transformation, used to
@@ skipping 10 matching lines @@
    * @type {o3d.Matrix4}
    */
   this.projection = opt_projection ||
       [[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]];
 };
 o3d.inherit('DrawContext', 'ParamObject');
 
 o3d.ParamObject.setUpO3DParam_(o3d.DrawContext, 'view', 'ParamMatrix4');
 o3d.ParamObject.setUpO3DParam_(o3d.DrawContext, 'projection', 'ParamMatrix4');