Expose Browser Plugin API in <browser> Tag Shim.

chrome/renderer/resources/extensions/browser_tag.js

Index: chrome/renderer/resources/extensions/browser_tag.js
diff --git a/chrome/renderer/resources/extensions/browser_tag.js b/chrome/renderer/resources/extensions/browser_tag.js
index 362ebea154313565dfbf0977853de2ced78ef992..0271532306a6ce3606e729a012fe0ab3f4891032 100644
--- a/chrome/renderer/resources/extensions/browser_tag.js
+++ b/chrome/renderer/resources/extensions/browser_tag.js
@@ -9,6 +9,20 @@
 
 var BROWSER_TAG_ATTRIBUTES = ['src', 'width', 'height'];
 
+// All exposed api methods for <browser>, these are forwarded to the browser
+// plugin.
+var BROWSER_TAG_API_METHODS = [
+    'addEventListener',
+    'back',
+    'forward',
+    'getProcessId',
+    'go',
+    'reload',
+    'removeEventListener',
+    'stop',
+    'terminate'
+    ];
+
 window.addEventListener('DOMContentLoaded', function() {
   // Handle <browser> tags already in the document.
   var browserNodes = document.body.querySelectorAll('browser');
@@ -38,7 +52,13 @@ function BrowserTag(node) {
 
   this.objectNode_ = document.createElement('object');
   this.objectNode_.type = 'application/browser-plugin';
+  var objectNode = this.objectNode_;
   BROWSER_TAG_ATTRIBUTES.forEach(this.copyAttribute_, this);
+  BROWSER_TAG_API_METHODS.forEach(function(apiMethod) {
+    node[apiMethod] = function(var_args) {
+      return objectNode[apiMethod].apply(objectNode, arguments);

[sadrul, 2012/10/12 22:03:49]

node[apiMethod] = objectNode[apiMethod].bind(objectNode);?

[Mihai Parparita -not on Chrome, 2012/10/12 22:19:41]

 +1

[lazyboy, 2012/10/12 23:21:16]

Cool, thanks.

+    };
+  });

[Mihai Parparita -not on Chrome, 2012/10/12 22:19:41]

You just pass in this as an argument to forEach, and then "this.objectNode_"
will do the right thing inside (this is what the loop on line 75 does).

[lazyboy, 2012/10/12 23:21:16]

Yes, now doing this;
I didn't do it b/c I was accessing the object in the inner function of this.

   shadowRoot.appendChild(this.objectNode_);
 
   // Map attribute modifications on the <browser> tag to changes on the