[Files.app] Enable the suggest an app dialog by default.

chrome/browser/resources/file_manager/foreground/js/file_manager.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.
 
 'use strict';
 
 /**
  * FileManager constructor.
  *
  * FileManager objects encapsulate the functionality of the file selector
@@ skipping 191 matching lines @@
     // Get the command line option.
     group.add(function(done) {
       chrome.commandLinePrivate.hasSwitch(
           'file-manager-show-checkboxes', function(flag) {
         this.showCheckboxes_ = flag;
         done();
       }.bind(this));
     }.bind(this));
 
     // TODO(yoshiki): Remove the flag when the feature is launched.
-    this.enableExperimentalWebstoreIntegration_ = false;
-    group.add(function(done) {
-      chrome.commandLinePrivate.hasSwitch(
-          'file-manager-enable-webstore-integration', function(flag) {
-        this.enableExperimentalWebstoreIntegration_ = flag;
-        done();
-      }.bind(this));
-    }.bind(this));
+    this.enableExperimentalWebstoreIntegration_ = true;
 
     group.run(callback);
   };
 
   /**
    * One time initialization for the file system and related things.
    *
    * @param {function()} callback Completion callback.
    * @private
    */
@@ skipping 3396 matching lines @@
       callback(this.preferences_);
       return;
     }
 
     chrome.fileBrowserPrivate.getPreferences(function(prefs) {
       this.preferences_ = prefs;
       callback(prefs);
     }.bind(this));
   };
 })();