[Webapp Refactor] Move key injection logic into the plugin layer.

remoting/webapp/crd/js/client_plugin.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview
  * Interface abstracting the ClientPlugin functionality.
  */
 
 'use strict';
@@ skipping 31 matching lines @@
     function(host, localJid, credentialsProvider) {};
 
 /**
  * @param {number} key The keycode to inject.
  * @param {boolean} down True for press; false for a release.
  */
 remoting.ClientPlugin.prototype.injectKeyEvent =
     function(key, down) {};
 
 /**
+ * Sends a key combination to the host, by sending down events for
+ * the given keys, followed by up events in reverse order.
+ *
+ * @param {Array<number>} keys Key codes to be sent.
+ * @return {void} Nothing.
+ */
+remoting.ClientPlugin.prototype.injectKeyCombination = function(keys) {};
+
+/**
+ * Sets and stores the key remapping setting for the current host.
+ *
+ * @param {string} remappings Comma separated list of key remappings.
+ */
+remoting.ClientPlugin.prototype.setRemapKeys = function(remappings) {};
+
+/**
  * @param {number} from
  * @param {number} to
  */
 remoting.ClientPlugin.prototype.remapKey = function(from, to) {};
 
 /**
  * Release all keys currently being pressed.
  */
 remoting.ClientPlugin.prototype.releaseAllKeys = function() {};
 
@@ skipping 176 matching lines @@
 /**
  * Preload the plugin to make instantiation faster when the user tries
  * to connect.
  */
 remoting.ClientPluginFactory.prototype.preloadPlugin = function() {};
 
 /**
  * @type {remoting.ClientPluginFactory}
  */
 remoting.ClientPlugin.factory = null;