[DevTools] Provide a way to delete Indexed DBs

third_party/WebKit/Source/devtools/front_end/ui/UIUtils.js

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) 2006, 2007, 2008 Apple Inc.  All rights reserved.
  * Copyright (C) 2007 Matt Lilek (pewtermoose@gmail.com).
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
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     callback(fileSelectorElement.files[0]);
   }
   return fileSelectorElement;
 };
 
 /**
  * @const
  * @type {number}
  */
 UI.MaxLengthForDisplayedURLs = 150;
+
+/**
+ * @unrestricted
+ */
+UI.ConfirmDialog = class extends UI.VBox {
+  /**
+   * @param {string} message
+   * @param {!Function} callback
+   */
+  static show(message, callback) {
+    var dialog = new UI.Dialog();
+    dialog.setWrapsContent(true);
+    dialog.addCloseButton();
+    dialog.setDimmed(true);
+    new UI
+        .ConfirmDialog(
+            message,
+            () => {
+              dialog.detach();
+              callback();
+            },
+            () => dialog.detach())
+        .show(dialog.element);
+    dialog.show();
+  }
+
+  /**
+   * @param {string} message
+   * @param {!Function} okCallback
+   * @param {!Function} cancelCallback
+   */
+  constructor(message, okCallback, cancelCallback) {
+    super(true);
+    this.registerRequiredCSS('ui/confirmDialog.css');
+    this.contentElement.createChild('div', 'message').createChild('span').textContent = message;
+    var buttonsBar = this.contentElement.createChild('div', 'button');
+    buttonsBar.appendChild(UI.createTextButton(Common.UIString('Ok'), okCallback));
+    buttonsBar.appendChild(UI.createTextButton(Common.UIString('Cancel'), cancelCallback));
+  }
+};