Remove width and height property from <webview> tag.

chrome/renderer/resources/extensions/web_view.js

 // Copyright (c) 2012 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.
 
 // Shim that simulates a <webview> tag via Mutation Observers.
 //
 // The actual tag is implemented via the browser plugin. The internals of this
 // are hidden via Shadow DOM.
 
-var WEB_VIEW_ATTRIBUTES = ['src', 'width', 'height'];
+var WEB_VIEW_ATTRIBUTES = ['src'];
 
 var WEB_VIEW_READONLY_ATTRIBUTES = ['contentWindow'];
 
 // All exposed api methods for <webview>, these are forwarded to the browser
 // plugin.
 var WEB_VIEW_API_METHODS = [
     'addEventListener',
     'back',
     'canGoBack',
     'canGoForward',
@@ skipping 28 matching lines @@
 
 /**
  * @constructor
  */
 function WebView(node) {
   this.node_ = node;
   var shadowRoot = new WebKitShadowRoot(node);
 
   this.objectNode_ = document.createElement('object');
   this.objectNode_.type = 'application/browser-plugin';
+  // The <object> node fills in the <browser> container.
+  this.objectNode_.style.width = '100%';
+  this.objectNode_.style.height = '100%';
   WEB_VIEW_ATTRIBUTES.forEach(this.copyAttribute_, this);
 
   shadowRoot.appendChild(this.objectNode_);
 
   // this.objectNode_[apiMethod] are defined after the shadow object is appended
   // to the shadow root.
   WEB_VIEW_API_METHODS.forEach(function(apiMethod) {
     node[apiMethod] = this.objectNode_[apiMethod].bind(this.objectNode_);
   }, this);
 
@@ skipping 11 matching lines @@
   // Expose getters and setters for the attributes.
   WEB_VIEW_ATTRIBUTES.forEach(function(attributeName) {
     Object.defineProperty(this.node_, attributeName, {
       get: function() {
         if (attributeName == 'src') {
           // Always read src attribute from the plugin <object> since: a) It can
           // have different value when empty src is set. b) BrowserPlugin
           // updates its src attribute on guest-initiated navigations.
           return objectNode.src;
         }
-        var value = node.getAttribute(attributeName);
-        var numericValue = parseInt(value, 10);
-        return isNaN(numericValue) ? value : numericValue;
+        return node.getAttribute(attributeName);
       },
       set: function(value) {
         node.setAttribute(attributeName, value);
       },
       enumerable: true
     });
   }, this);
 
   // We cannot use {writable: true} property descriptor because we want dynamic
   // getter value.
@@ skipping 27 matching lines @@
   }
 };
 
 /**
  * @private
  */
 WebView.prototype.copyAttribute_ = function(attributeName) {
   this.objectNode_.setAttribute(
       attributeName, this.node_.getAttribute(attributeName));
 };