DevTools: move emulation button into the base App.js.

Source/devtools/front_end/ResponsiveDesignView.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.VBox}
  * @implements {WebInspector.OverridesSupport.PageResizer}
  * @param {!WebInspector.InspectedPagePlaceholder} inspectedPagePlaceholder
  */
@@ skipping 33 matching lines @@
     this._heightSlider = this._heightSliderContainer.createChild("div", "responsive-design-slider-thumb");
     this._heightSlider.createChild("div", "responsive-design-thumb-handle");
     this._createResizer(this._heightSlider, true);
 
     this._inspectedPagePlaceholder = inspectedPagePlaceholder;
     inspectedPagePlaceholder.show(this.element);
 
     this._enabled = false;
 
     WebInspector.zoomManager.addEventListener(WebInspector.ZoomManager.Events.ZoomChanged, this._onZoomChanged, this);
-    WebInspector.overridesSupport.settings.emulationEnabled.addChangeListener(this._emulationEnabledChanged, this);
+    WebInspector.overridesSupport.addEventListener(WebInspector.OverridesSupport.Events.EmulationStateChanged, this._emulationEnabledChanged, this);
     this._emulationEnabledChanged();
     this._overridesWarningUpdated();
 };
 
 // Measured in DIP.
 WebInspector.ResponsiveDesignView.SliderWidth = 19;
 WebInspector.ResponsiveDesignView.RulerWidth = 22;
 
 WebInspector.ResponsiveDesignView.prototype = {
     _invalidateCache: function()
     {
         delete this._cachedScale;
         delete this._cachedCssCanvasWidth;
         delete this._cachedCssCanvasHeight;
         delete this._cachedCssHeight;
         delete this._cachedCssWidth;
         delete this._cachedZoomFactor;
         delete this._availableSize;
     },
 
     _emulationEnabledChanged: function()
     {
-        var enabled = WebInspector.overridesSupport.settings.emulationEnabled.get();
+        var enabled = WebInspector.overridesSupport.emulationEnabled();
         if (enabled && !this._enabled) {
             this._invalidateCache();
             this._ignoreResize = true;
             this._enabled = true;
             this._inspectedPagePlaceholder.clearMinimumSizeAndMargins();
             this._inspectedPagePlaceholder.show(this._pageContainer);
             this._responsiveDesignContainer.show(this.element);
             this.update(this._dipWidth || 0, this._dipHeight || 0, this._scale || 0);
             delete this._ignoreResize;
         } else if (!enabled && this._enabled) {
@@ skipping 381 matching lines @@
         this.onResize();
     },
 
     _showEmulationInDrawer: function()
     {
         WebInspector.overridesSupport.reveal();
     },
 
     __proto__: WebInspector.VBox.prototype
 };