Automated the definitions of webview attributes as properties on the webview node.

extensions/renderer/resources/guest_view/web_view.js

Index: extensions/renderer/resources/guest_view/web_view.js
diff --git a/extensions/renderer/resources/guest_view/web_view.js b/extensions/renderer/resources/guest_view/web_view.js
index 31f4b531d2bc5dcb027622f01bc8a5544fab70da..958f97a9158b36f1a3fbd8cb01214511d96c95ab 100644
--- a/extensions/renderer/resources/guest_view/web_view.js
+++ b/extensions/renderer/resources/guest_view/web_view.js
@@ -125,35 +125,10 @@ WebView.prototype.validateExecuteCodeCall  = function() {
   }
 };
 
-WebView.prototype.setupAutoSizeProperties = function() {
-  $Array.forEach(AUTO_SIZE_ATTRIBUTES, function(attributeName) {
-    Object.defineProperty(this.webviewNode, attributeName, {
-      get: function() {
-        return this.attributes[attributeName].getValue();
-      }.bind(this),
-      set: function(value) {
-        this.attributes[attributeName].setValue(value);
-      }.bind(this),
-      enumerable: true
-    });
-  }.bind(this), this);
-};
-
 WebView.prototype.setupWebviewNodeProperties = function() {
-  this.setupAutoSizeProperties();
-
-  Object.defineProperty(this.webviewNode,
-                        WebViewConstants.ATTRIBUTE_ALLOWTRANSPARENCY, {
-    get: function() {
-      return this.attributes[WebViewConstants.ATTRIBUTE_ALLOWTRANSPARENCY].
-          getValue();
-    }.bind(this),
-    set: function(value) {
-      this.attributes[WebViewConstants.ATTRIBUTE_ALLOWTRANSPARENCY].
-          setValue(value);
-    }.bind(this),
-    enumerable: true
-  });
+  for (var attributeName in this.attributes) {
+    this.attributes[attributeName].define();
+  }
 
   // We cannot use {writable: true} property descriptor because we want a
   // dynamic getter value.
@@ -168,37 +143,6 @@ WebView.prototype.setupWebviewNodeProperties = function() {
     // No setter.
     enumerable: true
   });
-
-  Object.defineProperty(this.webviewNode, WebViewConstants.ATTRIBUTE_NAME, {
-    get: function() {
-      return this.attributes[WebViewConstants.ATTRIBUTE_NAME].getValue();
-    }.bind(this),
-    set: function(value) {
-      this.attributes[WebViewConstants.ATTRIBUTE_NAME].setValue(value);
-    }.bind(this),
-    enumerable: true
-  });
-
-  Object.defineProperty(this.webviewNode,
-                        WebViewConstants.ATTRIBUTE_PARTITION, {
-    get: function() {
-      return this.attributes[WebViewConstants.ATTRIBUTE_PARTITION].getValue();
-    }.bind(this),
-    set: function(value) {
-      this.attributes[WebViewConstants.ATTRIBUTE_PARTITION].setValue(value);
-    }.bind(this),
-    enumerable: true
-  });
-
-  Object.defineProperty(this.webviewNode, WebViewConstants.ATTRIBUTE_SRC, {
-    get: function() {
-      return this.attributes[WebViewConstants.ATTRIBUTE_SRC].getValue();
-    }.bind(this),
-    set: function(value) {
-      this.attributes[WebViewConstants.ATTRIBUTE_SRC].setValue(value);
-    }.bind(this),
-    enumerable: true
-  });
 };
 
 // The purpose of this mutation observer is to catch assignment to the src