Webapp changes to support asking for a PIN

remoting/webapp/client_plugin_async.js

Index: remoting/webapp/client_plugin_async.js
diff --git a/remoting/webapp/client_plugin_async.js b/remoting/webapp/client_plugin_async.js
index bdda43331a69d334967aad471c8d37269c704256..cd7e1c0e380c0ac8ce6ff9e59ada6e0ba7eb40d7 100644
--- a/remoting/webapp/client_plugin_async.js
+++ b/remoting/webapp/client_plugin_async.js
@@ -41,6 +41,7 @@ remoting.ClientPluginAsync = function(plugin) {
   /** @param {boolean} ready Connection ready state. */
   this.onConnectionReadyHandler = function(ready) {};
   this.onDesktopSizeUpdateHandler = function () {};
+  this.fetchPinHandler = function () {};
 
   /** @type {number} */
   this.pluginApiVersion_ = -1;
@@ -205,8 +206,10 @@ remoting.ClientPluginAsync.prototype.handleMessage_ = function(messageStr) {
     }
     var ready = /** @type {boolean} */ message.data['ready'];
     this.onConnectionReadyHandler(ready);
+  } else if (message.method == 'fetchPin') {
+    this.fetchPinHandler();
   }
-}
+};
 
 /**
  * Deletes the plugin.
@@ -435,6 +438,32 @@ remoting.ClientPluginAsync.prototype.pauseAudio =
 };
 
 /**
+ * Called when a PIN is obtained from the user.
+ *
+ * @param {string} pin The PIN.
+ */
+remoting.ClientPluginAsync.prototype.onPinFetched =
+    function(pin) {
+  if (!this.hasFeature(remoting.ClientPlugin.Feature.ON_PIN_FETCHED)) {
+    return;
+  }
+  this.plugin.postMessage(JSON.stringify(
+      { method: 'onPinFetched', data: { pin: pin }}));
+};
+
+/**
+ * Tells the plugin to ask for the PIN asynchronously.
+ */
+remoting.ClientPluginAsync.prototype.useAsyncPinDialog =
+    function() {
+  if (!this.hasFeature(remoting.ClientPlugin.Feature.USE_ASYNC_PIN_DIALOG)) {
+    return;
+  }
+  this.plugin.postMessage(JSON.stringify(
+      { method: 'useAsyncPinDialog', data: {} }));
+};
+
+/**
  * If we haven't yet received a "hello" message from the plugin, change its
  * size so that the user can confirm it if click-to-play is enabled, or can
  * see the "this plugin is disabled" message if it is actually disabled.