[Files.app] Not to capture mouse events when the suggest app dialog is visible.

chrome/browser/resources/file_manager/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';
 
 /**
  * This variable is checked in SelectFileDialogExtensionBrowserTest.
  * @type {number}
  */
@@ skipping 2336 matching lines @@
 
     this.metadataCache_.get(urls, 'drive', function(props) {
       if (!props || !props[0] || !props[0].contentMimeType) {
         onFailure();
         return;
       }
 
       var filename = util.extractFilePath(urls[0]);
       var extension = PathUtil.extractExtension(filename);
       var mime = props[0].contentMimeType;
+
+      // Add the overlapped class to prevent the applicaiton window from
+      // captureing mouse events.
+      this.enableDragOnTitleArea_(false);

[hirono, 2013/09/03 08:23:07]

Can we make sure that the both dialogs are not opened at the same time?

       this.suggestAppsDialog.show(
           extension, mime,
           function(result) {
+            this.enableDragOnTitleArea_(true);
             switch (result) {
               case SuggestAppsDialog.Result.INSTALL_SUCCESSFUL:
                 onSuccess();
                 break;
               case SuggestAppsDialog.Result.FAILED:
                 onFailure();
                 break;
               default:
                 onCancelled();
             }
@@ skipping 1592 matching lines @@
    */
   FileManager.prototype.setCtrlKeyPressed_ = function(flag) {
     this.ctrlKeyPressed_ = flag;
     // Before the DOM is constructed, the key event can be handled.
     var cacheClearCommand =
         this.document_.querySelector('#drive-clear-local-cache');
     if (cacheClearCommand)
       cacheClearCommand.canExecuteChange();
   };
 })();