[Extensions] Remove FeatureSwitch::easy_off_store_install

chrome/browser/resources/extensions/extensions.js

 // Copyright (c) 2012 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.
 
 // <include src="../../../../ui/webui/resources/js/cr/ui/focus_row.js">
 // <include src="../../../../ui/webui/resources/js/cr/ui/focus_grid.js">
 // <include src="../uber/uber_utils.js">
 // <include src="drag_and_drop_handler.js">
 // <include src="extension_code.js">
 // <include src="extension_commands_overlay.js">
@@ skipping 92 matching lines @@
       $('load-unpacked').addEventListener('click', function(e) {
         chrome.send('metricsHandler:recordAction',
                     ['Options_LoadUnpackedExtension']);
         extensionLoader.loadUnpacked();
       });
       $('pack-extension').addEventListener('click',
           this.handlePackExtension_.bind(this));
       $('update-extensions-now').addEventListener('click',
           this.handleUpdateExtensionNow_.bind(this));
 
-      if (!loadTimeData.getBoolean('offStoreInstallEnabled')) {
-        var dragTarget = document.documentElement;
-        /** @private {extensions.DragAndDropHandler} */
-        this.dragWrapperHandler_ =
-            new extensions.DragAndDropHandler(true, dragTarget);
-        dragTarget.addEventListener('extension-drag-started', function() {
-          ExtensionSettings.showOverlay($('drop-target-overlay'));
-        });
-        dragTarget.addEventListener('extension-drag-ended', function() {
-          var overlay = ExtensionSettings.getCurrentOverlay();
-          if (overlay && overlay.id === 'drop-target-overlay')
-            ExtensionSettings.showOverlay(null);
-        });
-        this.dragWrapper_ =
-            new cr.ui.DragWrapper(dragTarget, this.dragWrapperHandler_);
-      }
+      var dragTarget = document.documentElement;
+      /** @private {extensions.DragAndDropHandler} */
+      this.dragWrapperHandler_ =
+          new extensions.DragAndDropHandler(true, dragTarget);
+      dragTarget.addEventListener('extension-drag-started', function() {
+        ExtensionSettings.showOverlay($('drop-target-overlay'));
+      });
+      dragTarget.addEventListener('extension-drag-ended', function() {
+        var overlay = ExtensionSettings.getCurrentOverlay();
+        if (overlay && overlay.id === 'drop-target-overlay')
+          ExtensionSettings.showOverlay(null);
+      });
+      this.dragWrapper_ =
+          new cr.ui.DragWrapper(dragTarget, this.dragWrapperHandler_);
 
       extensions.PackExtensionOverlay.getInstance().initializePage();
 
       // Hook up the configure commands link to the overlay.
       var link = document.querySelector('.extension-commands-config');
       link.addEventListener('click',
           this.handleExtensionCommandsConfig_.bind(this));
 
       // Initialize the Commands overlay.
       extensions.ExtensionCommandsOverlay.getInstance().initializePage();
@@ skipping 324 matching lines @@
 
   // Export
   return {
     ExtensionSettings: ExtensionSettings
   };
 });
 
 window.addEventListener('load', function(e) {
   extensions.ExtensionSettings.getInstance().initialize();
 });