On bookmark edit, the OK button is now disabled if the entered URL is...

chrome/browser/cocoa/bookmark_editor_controller.h

 // Copyright (c) 2009 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_COCOA_BOOKMARK_EDITOR_CONTROLLER_H_
 #define CHROME_BROWSER_COCOA_BOOKMARK_EDITOR_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/scoped_ptr.h"
 #include "base/scoped_nsobject.h"
 #include "chrome/browser/bookmarks/bookmark_editor.h"
 
 // A controller for the bookmark editor, opened with Edit... from the
 // context menu of a bookmark button.
 @interface BookmarkEditorController : NSWindowController {
  @private
   IBOutlet NSTextField* nameField_;
   IBOutlet NSTextField* urlField_;
   IBOutlet NSBrowser* browser_;
+  IBOutlet NSButton* okButton_;
   IBOutlet NSButton* newFolderButton_;
 
   NSWindow* parentWindow_;
   Profile* profile_;  // weak
   const BookmarkNode* parentNode_;  // weak; owned by the model
   const BookmarkNode* node_;  // weak; owned by the model
   BookmarkEditor::Configuration configuration_;
   scoped_ptr<BookmarkEditor::Handler> handler_;  // we take ownership
 
   scoped_nsobject<NSString> initialName_;
   scoped_nsobject<NSString> initialUrl_;
 }
 
 - (id)initWithParentWindow:(NSWindow*)parentWindow
                    profile:(Profile*)profile
                     parent:(const BookmarkNode*)parent
                       node:(const BookmarkNode*)node
              configuration:(BookmarkEditor::Configuration)configuration
                    handler:(BookmarkEditor::Handler*)handler;
 
 // Actions for the buttons at the bottom of the window.
 - (IBAction)newFolder:(id)sender;
 - (IBAction)cancel:(id)sender;
 - (IBAction)ok:(id)sender;
 @end
 
 @interface BookmarkEditorController(TestingAPI)
 @property (assign) NSString* displayName;
 @property (assign) NSString* displayURL;
+@property (readonly) BOOL okButtonEnabled;
 @end
 
 
 #endif  /* CHROME_BROWSER_COCOA_BOOKMARK_EDITOR_CONTROLLER_H_ */