<webview>: Implement WebRequest API

chrome/renderer/resources/extensions/web_view.js

Index: chrome/renderer/resources/extensions/web_view.js
diff --git a/chrome/renderer/resources/extensions/web_view.js b/chrome/renderer/resources/extensions/web_view.js
index 73f4f1af30fd11ea1ec80dd466bb55b15eb1b0c0..d0a8ab104380a79485f150f5a6cf84066bbffd8a 100644
--- a/chrome/renderer/resources/extensions/web_view.js
+++ b/chrome/renderer/resources/extensions/web_view.js
@@ -7,6 +7,10 @@
 // The actual tag is implemented via the browser plugin. The internals of this
 // are hidden via Shadow DOM.
 
+var GetExtensionAPIDefinition =
+      requireNative('apiDefinitions').GetExtensionAPIDefinition;
+var WebRequestEvent = require('webRequest').webRequestEvent;
+
 var watchForTag = require("tagWatcher").watchForTag;
 
 var WEB_VIEW_ATTRIBUTES = ['name', 'src', 'partition', 'autosize', 'minheight',
@@ -111,6 +115,30 @@ function WebView(node) {
     });
   }, this);
 
+
+  // Populate the WebRequest events from the API definition.
+  var webRequestDefinition =
+      GetExtensionAPIDefinition('webRequest')[0];
+  for (var i = 0; i < webRequestDefinition.events.length; ++i) {
+    Object.defineProperty(self.node_, webRequestDefinition.events[i].name, {
+      get: function(webRequestEvent) {
+        return function() {
+          if (!self[webRequestEvent.name + '_']) {
+            self[webRequestEvent.name + '_'] =
+                new WebRequestEvent(
+                    'webview.' + webRequestEvent.name,
+                    webRequestEvent.parameters,
+                    webRequestEvent.extraParameters, null,
+                    self.objectNode_.getInstanceId());
+          }
+          return self[webRequestEvent.name + '_'];
+        }
+      }(webRequestDefinition.events[i]),
+      // No setter.
+      enumerable: true
+    });
+  }
+
   // We cannot use {writable: true} property descriptor because we want dynamic
   // getter value.
   Object.defineProperty(this.node_, 'contentWindow', {