Create a dialog box for the about:network view and kill the tab type....

chrome/views/text_field.h

 // Copyright (c) 2006-2008 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.
 
 // These classes define a text field widget that can be used in the views UI
 // toolkit.
 
 #ifndef CHROME_VIEWS_TEXT_FIELD_H_
 #define CHROME_VIEWS_TEXT_FIELD_H_
 
@@ skipping 79 matching lines @@
   virtual void AboutToRequestFocusFromTabTraversal(bool reverse);
 
   // Overridden from Chrome::View.
   virtual bool ShouldLookupAccelerators(const KeyEvent& e);
 
   virtual HWND GetNativeComponent();
 
   // Returns the text currently displayed in the text field.
   std::wstring GetText() const;
 
-  // Set the text currently displayed in the text field.
+  // Sets the text currently displayed in the text field.
   void SetText(const std::wstring& text);
 
+  // Appends the given string to the previously-existing text in the field.
+  void AppendText(const std::wstring& text);
+
   virtual void Focus();
 
   // Causes the edit field to be fully selected.
   void SelectAll();
 
   // Clears the selection within the edit field and sets the caret to the end.
   void ClearSelection() const;
 
   StyleFlags GetStyle() const { return style_; }
 
@@ skipping 79 matching lines @@
  protected:
   // Calculates the insets for the text field.
   void CalculateInsets(gfx::Insets* insets);
 
   DISALLOW_COPY_AND_ASSIGN(TextField);
 };
 
 }  // namespace views
 
 #endif  // CHROME_VIEWS_TEXT_FIELD_H_