Revert of [DevTools] Inject element into toolbox window, do not load modules there.

Source/devtools/front_end/toolbox_bootstrap/Toolbox.js

Index: Source/devtools/front_end/toolbox_bootstrap/Toolbox.js
diff --git a/Source/devtools/front_end/toolbox_bootstrap/Toolbox.js b/Source/devtools/front_end/toolbox_bootstrap/Toolbox.js
index 38a46a37f091b13fe2b22f76a18bb5b46340273c..5f557f2549905a1afc37257aba35c478fd7d7cf8 100644
--- a/Source/devtools/front_end/toolbox_bootstrap/Toolbox.js
+++ b/Source/devtools/front_end/toolbox_bootstrap/Toolbox.js
@@ -10,14 +10,24 @@
     if (!window.opener)
         return;
 
-    var delegate = /** @type {!WebInspector.ToolboxDelegate} */ (window.opener.WebInspector["app"]);
-
-    WebInspector.zoomManager = new WebInspector.ZoomManager(delegate.inspectorFrontendHost());
+    WebInspector.zoomManager = new WebInspector.ZoomManager(window.opener.InspectorFrontendHost);
+    WebInspector.overridesSupport = window.opener.WebInspector.overridesSupport;
+    WebInspector.settings = window.opener.WebInspector.settings;
+    WebInspector.experimentsSettings = window.opener.WebInspector.experimentsSettings;
+    WebInspector.targetManager = window.opener.WebInspector.targetManager;
+    WebInspector.workspace = window.opener.WebInspector.workspace;
+    WebInspector.cssWorkspaceBinding = window.opener.WebInspector.cssWorkspaceBinding;
+    WebInspector.Revealer = window.opener.WebInspector.Revealer;
+    WebInspector.ContextMenu = window.opener.WebInspector.ContextMenu;
     WebInspector.installPortStyles();
 
+    var delegate = /** @type {!WebInspector.ToolboxDelegate} */ (window.opener.WebInspector["app"]);
     var rootView = new WebInspector.RootView();
-    delegate.toolboxLoaded(rootView.element);
+    var inspectedPagePlaceholder = new WebInspector.InspectedPagePlaceholder();
+    this._responsiveDesignView = new WebInspector.ResponsiveDesignView(inspectedPagePlaceholder);
+    this._responsiveDesignView.show(rootView.element);
     rootView.attachToBody();
+    delegate.toolboxLoaded(this._responsiveDesignView, inspectedPagePlaceholder);
 }
 
 // FIXME: This stub is invoked from the backend and should be removed