[DevTools] Add touch to sensors view.

third_party/WebKit/Source/devtools/front_end/emulation/SensorsView.js

Index: third_party/WebKit/Source/devtools/front_end/emulation/SensorsView.js
diff --git a/third_party/WebKit/Source/devtools/front_end/emulation/SensorsView.js b/third_party/WebKit/Source/devtools/front_end/emulation/SensorsView.js
index fb3073932567b9f97c56ced9e37a96cde146b45b..d9cf4d773f0147923dc28d809e36ca13db4546c8 100644
--- a/third_party/WebKit/Source/devtools/front_end/emulation/SensorsView.js
+++ b/third_party/WebKit/Source/devtools/front_end/emulation/SensorsView.js
@@ -21,6 +21,8 @@ WebInspector.SensorsView = function()
     this._deviceOrientation = WebInspector.DeviceOrientation.parseSetting(this._deviceOrientationSetting.get());
     this._deviceOrientationEnabled = false;
     this._appendDeviceOrientationOverrideControl();
+
+    this._appendTouchControl();
 }
 
 WebInspector.SensorsView.prototype = {
@@ -297,6 +299,21 @@ WebInspector.SensorsView.prototype = {
         return new WebInspector.Geometry.Vector(sphereX, sphereY, Math.sqrt(1 - sqrSum));
     },
 
+    _appendTouchControl: function()
+    {
+        var label = this.contentElement.createChild("label", "touch-label");
+        label.createChild("span", "").textContent = WebInspector.UIString("Touch");
+        var select = label.createChild("select", "chrome-select");
+        select.appendChild(new Option(WebInspector.UIString("Device-based"), "auto"));
+        select.appendChild(new Option(WebInspector.UIString("Force enabled"), "enabled"));
+        select.addEventListener("change", applyTouch, false);
+
+        function applyTouch()
+        {
+            WebInspector.MultitargetTouchModel.instance().setCustomTouchEnabled(select.value === "enabled");
+        }
+    },
+
     __proto__ : WebInspector.VBox.prototype
 }