Reinstate the error code to main content area + bug fixes on security / network interstitials

chrome/renderer/resources/offline.js

 // Copyright (c) 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 (function() {
 'use strict';
 /**
  * T-Rex runner.
  * @param {string} outerContainerId Outer containing element id.
  * @param {object} opt_config
  * @constructor
@@ skipping 775 matching lines @@
     canvas.width = oldWidth * ratio;
     canvas.height = oldHeight * ratio;
 
     canvas.style.width = oldWidth + 'px';
     canvas.style.height = oldHeight + 'px';
 
     // Scale the context to counter the fact that we've manually scaled
     // our canvas element.
     context.scale(ratio, ratio);
     return true;
+  } else if (devicePixelRatio == 1) {
+    // Reset the canvas width / height. Fixes scaling bug when the page is
+    // zoomed and the devicePixelRatio changes accordingly.
+    canvas.style.width = canvas.width + 'px';
+    canvas.style.height = canvas.height + 'px';
   }
   return false;
 };
 
 
 /**
  * Get random number.
  * @param {number} min
  * @param {number} max
  * @param {number}
@@ skipping 1438 matching lines @@
 
   /**
    * Add a new cloud to the horizon.
    */
   addCloud: function() {
     this.clouds.push(new Cloud(this.canvas, this.cloudImg,
         this.dimensions.WIDTH));
   }
 };
 })();