[Webapp Refactor] Reparent the ConnectedView into the delegate.

remoting/webapp/base/js/application.js

Index: remoting/webapp/base/js/application.js
diff --git a/remoting/webapp/base/js/application.js b/remoting/webapp/base/js/application.js
index 008a277c430b2bf28d01aead41496baf2be083bd..82b64534c4a50a56a79271531acecc8fbb2c3b4e 100644
--- a/remoting/webapp/base/js/application.js
+++ b/remoting/webapp/base/js/application.js
@@ -159,31 +159,6 @@ remoting.Application.prototype.onVideoStreamingStarted = function() {
 };
 
 /**
- * Called when an extension message needs to be handled.
- *
- * @param {string} type The type of the extension message.
- * @param {string} data The payload of the extension message.
- * @return {boolean} Return true if the extension message was recognized.
- */
-remoting.Application.prototype.onExtensionMessage = function(type, data) {
-  var message = /** @type {Object} */ (base.jsonParseSafe(data));
-  if (typeof message != 'object') {
-    return false;
-  }
-
-  // Give the delegate a chance to handle this extension message first.
-  if (this.delegate_.handleExtensionMessage(type, message)) {
-    return true;
-  }
-
-  if (remoting.desktopConnectedView) {
-    return remoting.desktopConnectedView.handleExtensionMessage(type, message);
-  }
-
-  return false;
-};
-
-/**
  * Called when an error needs to be displayed to the user.
  *
  * @param {!remoting.Error} errorTag The error to be localized and displayed.
@@ -204,7 +179,6 @@ remoting.Application.prototype.getSessionConnector = function() {
         document.getElementById('client-container'),
         this.onConnected.bind(this),
         this.onError.bind(this),
-        this.onExtensionMessage.bind(this),
         this.onConnectionFailed.bind(this),
         this.appCapabilities_,
         this.delegate_.getDefaultRemapKeys());
@@ -334,16 +308,6 @@ remoting.Application.Delegate.prototype.handleVideoStreamingStarted =
     function() {};
 
 /**
- * Called when an extension message needs to be handled.
- *
- * @param {string} type The type of the extension message.
- * @param {Object} message The parsed extension message data.
- * @return {boolean} Return true if the extension message was recognized.
- */
-remoting.Application.Delegate.prototype.handleExtensionMessage =
-    function(type, message) {};
-
-/**
  * Called when an error needs to be displayed to the user.
  *
  * @param {!remoting.Error} errorTag The error to be localized and displayed.