Use delegate protocols present in the 10.6 SDK

chrome/browser/cocoa/download_shelf_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.
 
 #import <Cocoa/Cocoa.h>
 
+#import "base/cocoa_protocols_mac.h"
 #include "base/scoped_nsobject.h"
 #include "base/scoped_ptr.h"
 #import "chrome/browser/cocoa/view_resizer.h"
 
 class BaseDownloadItemModel;
 class Browser;
 @class BrowserWindowController;
 @class DownloadItemController;
 class DownloadShelf;
 @class DownloadShelfView;
 
 // A controller class that manages the download shelf for one window. It is
 // responsible for the behavior of the shelf itself (showing/hiding, handling
 // the link, layout) as well as for managing the download items it contains.
 //
 // All the files in cocoa/downloads_* are related as follows:
 //
 // download_shelf_mac bridges calls from chromium's c++ world to the objc
 // download_shelf_controller for the shelf (this file). The shelf's background
 // is drawn by download_shelf_view. Every item in a shelf is controlled by a
 // download_item_controller.
 //
 // download_item_mac bridges calls from chromium's c++ world to the objc
 // download_item_controller, which is responsible for managing a single item
 // on the shelf. The item controller loads its UI from a xib file, where the
 // UI of an item itself is represented by a button that is drawn by
 // download_item_cell.
 
-@interface DownloadShelfController : NSViewController {
+@interface DownloadShelfController : NSViewController<NSTextViewDelegate> {
  @private
   IBOutlet NSScrollView* linkContainer_;
   IBOutlet NSTextView* showAllDownloadsLink_;
 
   IBOutlet NSImageView* image_;
 
   BOOL barIsVisible_;
 
   scoped_ptr<DownloadShelf> bridge_;
   float shelfHeight_;
@@ skipping 27 matching lines @@
 // Notification that we are closing and should release our downloads.
 - (void)exiting;
 
 // Return the height of the download shelf.
 - (float)height;
 
 // Re-layouts all download items based on their current state.
 - (void)layoutItems;
 
 @end