[DevTools] Cleanup Page domain calls, which should be Emulation calls.

Source/devtools/front_end/main/RenderingOptions.js

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 31 matching lines @@
     this._mapSettingToSetter(WebInspector.settings.showDebugBorders, "setShowDebugBorders");
     this._mapSettingToSetter(WebInspector.settings.showFPSCounter, "setShowFPSCounter");
     this._mapSettingToSetter(WebInspector.settings.continuousPainting, "setContinuousPaintingEnabled");
     this._mapSettingToSetter(WebInspector.settings.showScrollBottleneckRects, "setShowScrollBottleneckRects");
 
     WebInspector.targetManager.observeTargets(this);
 }
 
 WebInspector.RenderingOptions.prototype = {
     /**
+     * @param {!WebInspector.Target} target
+     * @return {boolean}
+     */
+    supportsRendering: function(target)
+    {
+        return target.isPage();
+    },
+
+    /**
      * @override
      * @param {!WebInspector.Target} target
      */
     targetAdded: function(target)
     {
+        if (this.supportsRendering(target))
+            return;
+
         var settings = this._setterNames.keysArray();
         for (var i = 0; i < settings.length; ++i) {
             var setting = settings[i];
             if (setting.get()) {
                 var setterName = this._setterNames.get(setting);
                 target.renderingAgent()[setterName](true);
             }
         }
     },
 
     /**
      * @override
      * @param {!WebInspector.Target} target
      */
     targetRemoved: function(target)
     {
     },
 
     /**
      * @param {!WebInspector.Setting} setting
      * @param {string} setterName
      */
     _mapSettingToSetter: function(setting, setterName)
     {
         this._setterNames.set(setting, setterName);
-        setting.addChangeListener(changeListener);
+        setting.addChangeListener(changeListener.bind(this));
 
+        /**
+         * @this {WebInspector.RenderingOptions}
+         */
         function changeListener()
         {
             var targets = WebInspector.targetManager.targets();
-            for (var i = 0; i < targets.length; ++i)
-                targets[i].renderingAgent()[setterName](setting.get());
+            for (var i = 0; i < targets.length; ++i) {
+                if (this.supportsRendering(targets[i]))
+                    targets[i].renderingAgent()[setterName](setting.get());
+            }
         }
     }
 }
 
 /**
  * @constructor
  * @extends {WebInspector.VBox}
  */
 WebInspector.RenderingOptions.View = function()
 {
     WebInspector.VBox.call(this);
     this.registerRequiredCSS("ui/helpScreen.css");
     this.element.classList.add("help-indent-labels");
 
     var div = this.element.createChild("div", "settings-tab help-content help-container help-no-columns");
     div.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Show paint rectangles"), WebInspector.settings.showPaintRects));
     div.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Show composited layer borders"), WebInspector.settings.showDebugBorders));
     div.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Show FPS meter"), WebInspector.settings.showFPSCounter));
     div.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Enable continuous page repainting"), WebInspector.settings.continuousPainting));
     var child = WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Show potential scroll bottlenecks"), WebInspector.settings.showScrollBottleneckRects);
     child.title = WebInspector.UIString("Shows areas of the page that slow down scrolling:\nTouch and mousewheel event listeners can delay scrolling.\nSome areas need to repaint their content when scrolled.");
     div.appendChild(child);
 }
 
 WebInspector.RenderingOptions.View.prototype = {
     __proto__: WebInspector.VBox.prototype
 }