[DevTools] Disable touch emulation on devices with touch input.

Source/devtools/front_end/Target.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.
  */
 
 /**
  * @constructor
  * @extends {Protocol.Agents}
  * @param {!InspectorBackendClass.Connection} connection
  * @param {function(!WebInspector.Target)=} callback
  */
 WebInspector.Target = function(connection, callback)
 {
     Protocol.Agents.call(this, connection.agentsMap());
     this._connection = connection;
     this.isMainFrontend = false;
 
+    /**
+     * @type {boolean}
+     */
+    this.canScreencast = false;
     this.pageAgent().canScreencast(this._initializeCapability.bind(this, "canScreencast", null));
 
+    /**
+     * @type {boolean}
+     */
+    this.hasTouchInputs = false;
+    this.pageAgent().hasTouchInputs(this._initializeCapability.bind(this, "hasTouchInputs", null));
+
     if (WebInspector.experimentsSettings.powerProfiler.isEnabled())
         this.powerAgent().canProfilePower(this._initializeCapability.bind(this, "canProfilePower", null));
 
     this.workerAgent().canInspectWorkers(this._initializeCapability.bind(this, "isMainFrontend", this._loadedWithCapabilities.bind(this, callback)));
 }
 
 WebInspector.Target.prototype = {
 
     _initializeCapability: function(name, callback, error, result)
     {
@@ skipping 214 matching lines @@
     /**
      * @param {!WebInspector.Target} target
      */
     targetRemoved: function(target) { },
 }
 
 /**
  * @type {!WebInspector.TargetManager}
  */
 WebInspector.targetManager;