Invalid URLs are no longer mangled when reopening the Options window

chrome/browser/gtk/options/general_page_gtk.h

 // Copyright (c) 2010 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.
 
 #ifndef CHROME_BROWSER_GTK_OPTIONS_GENERAL_PAGE_GTK_H_
 #define CHROME_BROWSER_GTK_OPTIONS_GENERAL_PAGE_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include <string>
@@ skipping 49 matching lines @@
   // Populates the default search engine combobox from the model.
   virtual void OnTemplateURLModelChanged();
 
   // Set the default search engine pref to the combo box active item.
   void SetDefaultSearchEngineFromComboBox();
 
   // Set the default search engine combo box state.
   void EnableDefaultSearchEngineComboBox(bool enable);
 
   // Sets the home page preferences for kNewTabPageIsHomePage and kHomePage.
-  // If a blank string is passed in we revert to using NewTab page as the Home
-  // page. When setting the Home Page to NewTab page, we preserve the old value
-  // of kHomePage (we don't overwrite it).
+  // If an invalid URL is passed in we revert to using NewTab page as the Home
+  // page.
   void SetHomepage(const GURL& homepage);
 
   // Sets the home page pref using the value in the entry box
   void SetHomepageFromEntry();
 
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnStartupRadioToggled);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnStartupAddCustomPageClicked);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnStartupRemoveCustomPageClicked);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnStartupUseCurrentPageClicked);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnNewTabIsHomePageToggled);
@@ skipping 65 matching lines @@
   // The helper object that performs default browser set/check tasks.
   scoped_refptr<ShellIntegration::DefaultBrowserWorker> default_browser_worker_;
 
   // Helper object to manage accessibility metadata.
   scoped_ptr<AccessibleWidgetHelper> accessible_widget_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(GeneralPageGtk);
 };
 
 #endif  // CHROME_BROWSER_GTK_OPTIONS_GENERAL_PAGE_GTK_H_