Thanks to gman, fixed o3d.webgl.createClient and o3d-webgl Client to handle...

samples/o3d-webgl/client.js

Index: samples/o3d-webgl/client.js
===================================================================
--- samples/o3d-webgl/client.js	(revision 45712)
+++ samples/o3d-webgl/client.js	(working copy)
@@ -103,6 +103,7 @@
       renderEvent.elapsedTime = 0.0;
     else
       renderEvent.elapsedTime = now - client.then_;
+    client.updateDisplayInfo_();
     if (client.render_callback) {
       client.render_callback(renderEvent);
     }
@@ -538,8 +539,7 @@
   this.gl = gl;
 
   gl.client = this;
-  gl.displayInfo = {width: canvas.width,
-                    height: canvas.height};
+  this.updateDisplayInfo_();
 };
 
 
@@ -890,3 +890,11 @@
 o3d.Client.prototype.canvas = null;
 
 
+/**
+ * Updates the display information attached to the GL.
+ * @private
+ */
+o3d.Client.prototype.updateDisplayInfo_ = function() {
+  this.gl.displayInfo = {width: this.width,
+                         height: this.height};
+};