[DevTools] Move user agent override to responsive design toolbar.

Source/devtools/front_end/main/AdvancedApp.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 {WebInspector.App}
  */
 WebInspector.AdvancedApp = function()
 {
     WebInspector.App.call(this);
 
     if (!WebInspector.experimentsSettings.responsiveDesign.isEnabled())
         return;
 
     this._toggleResponsiveDesignButton = new WebInspector.StatusBarButton(WebInspector.UIString("Responsive design mode."), "responsive-design-status-bar-item");
-    this._toggleResponsiveDesignButton.toggled = WebInspector.settings.responsiveDesignMode.get();
+    this._toggleResponsiveDesignButton.toggled = WebInspector.settings.responsiveDesign.enabled.get();
     this._toggleResponsiveDesignButton.addEventListener("click", this._toggleResponsiveDesign, this);
-    WebInspector.settings.responsiveDesignMode.addChangeListener(this._responsiveDesignModeChanged, this);
+    WebInspector.settings.responsiveDesign.enabled.addChangeListener(this._responsiveDesignEnabledChanged, this);
 };
 
 WebInspector.AdvancedApp.prototype = {
     _toggleResponsiveDesign: function()
     {
-        WebInspector.settings.responsiveDesignMode.set(!this._toggleResponsiveDesignButton.toggled);
+        WebInspector.settings.responsiveDesign.enabled.set(!this._toggleResponsiveDesignButton.toggled);
     },
 
-    _responsiveDesignModeChanged: function()
+    _responsiveDesignEnabledChanged: function()
     {
-        this._toggleResponsiveDesignButton.toggled = WebInspector.settings.responsiveDesignMode.get();
+        this._toggleResponsiveDesignButton.toggled = WebInspector.settings.responsiveDesign.enabled.get();
     },
 
     createRootView: function()
     {
         var rootView = new WebInspector.RootView();
 
         this._rootSplitView = new WebInspector.SplitView(false, true, WebInspector.dockController.canDock() ? "InspectorView.splitViewState" : "InspectorView.dummySplitViewState", 300, 300);
         this._rootSplitView.show(rootView.element);
 
         WebInspector.inspectorView.show(this._rootSplitView.sidebarElement());
@@ skipping 73 matching lines @@
     /**
      * @return {?WebInspector.StatusBarButton}
      */
     button: function()
     {
         if (!(WebInspector.app instanceof WebInspector.AdvancedApp))
             return null;
         return /** @type {!WebInspector.AdvancedApp} */ (WebInspector.app)._toggleResponsiveDesignButton || null;
     }
 }