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

Source/devtools/front_end/host/InspectorFrontendHost.js

Index: Source/devtools/front_end/host/InspectorFrontendHost.js
diff --git a/Source/devtools/front_end/host/InspectorFrontendHost.js b/Source/devtools/front_end/host/InspectorFrontendHost.js
index 0624b99b27f862e45bd3d4e0af2baa0a0637e6d4..144b9e5877e558541f554e6bad7e14cba2d95603 100644
--- a/Source/devtools/front_end/host/InspectorFrontendHost.js
+++ b/Source/devtools/front_end/host/InspectorFrontendHost.js
@@ -31,10 +31,6 @@
 /** @interface */
 function InspectorFrontendHostAPI()
 {
-    /**
-     * @type {!WebInspector.EventTarget}
-     */
-    this.events;
 }
 
 /** @typedef {{type:string, id:(number|undefined),
@@ -276,9 +272,8 @@
      * @param {number} x
      * @param {number} y
      * @param {!Array.<!InspectorFrontendHostAPI.ContextMenuDescriptor>} items
-     * @param {!Window} window
-     */
-    showContextMenuAtPoint: function(x, y, items, window) { },
+     */
+    showContextMenuAtPoint: function(x, y, items) { },
 
     /**
      * @return {boolean}
@@ -591,9 +586,8 @@
      * @param {number} x
      * @param {number} y
      * @param {!Array.<!InspectorFrontendHostAPI.ContextMenuDescriptor>} items
-     * @param {!Window} window
-     */
-    showContextMenuAtPoint: function(x, y, items, window)
+     */
+    showContextMenuAtPoint: function(x, y, items)
     {
         throw "Soft context menu should be used";
     },