[Mac] Fix the custom homepages preferences.

chrome/browser/cocoa/custom_home_pages_model.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// 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_COCOA_CUSTOM_HOME_PAGES_MODEL_H_
 #define CHROME_BROWSER_COCOA_CUSTOM_HOME_PAGES_MODEL_H_
 #pragma once
 
 #import <Cocoa/Cocoa.h>
 
 #include <vector>
 #include "base/scoped_nsobject.h"
+#include "chrome/browser/history/history.h"
 #include "googleurl/src/gurl.h"
 
 class Profile;
 
 // The model for the "custom home pages" table in preferences. Contains a list
 // of CustomHomePageEntry objects. This is intended to be used with Cocoa
 // bindings.
 //
 // The supported binding is |customHomePages|, a to-many relationship which
 // can be observed with an array controller.
 
 @interface CustomHomePagesModel : NSObject {
  @private
   scoped_nsobject<NSMutableArray> entries_;
   Profile* profile_;  // weak, used for loading favicons
 }
 
 // Initialize with |profile|, which must not be NULL. The profile is used for
 // loading favicons for urls.
 - (id)initWithProfile:(Profile*)profile;
 
 // Get/set the urls the model currently contains as a group. Only one change
 // notification will be sent.
 - (std::vector<GURL>)URLs;
 - (void)setURLs:(const std::vector<GURL>&)urls;
 
+// Reloads the URLs from their stored state. This will notify using KVO
+// |customHomePages|.
+- (void)reloadURLs;
+
 // Validates the set of URLs stored in the model. The user may have input bad
 // data. This function removes invalid entries from the model, which will result
 // in anyone observing being updated.
 - (void)validateURLs;
 
 // For binding |customHomePages| to a mutable array controller.
 - (NSUInteger)countOfCustomHomePages;
 - (id)objectInCustomHomePagesAtIndex:(NSUInteger)index;
 - (void)insertObject:(id)object inCustomHomePagesAtIndex:(NSUInteger)index;
 - (void)removeObjectFromCustomHomePagesAtIndex:(NSUInteger)index;
 @end
 
-@interface CustomHomePagesModel(InternalOrTestingAPI)
+////////////////////////////////////////////////////////////////////////////////
+
+// An entry representing a single item in the custom home page model. Stores
+// a url and a favicon.
+@interface CustomHomePageEntry : NSObject {
+ @private
+  scoped_nsobject<NSString> url_;
+  scoped_nsobject<NSImage> icon_;
+
+  // If non-zero, indicates we're loading the favicon for the page.
+  HistoryService::Handle icon_handle_;
+}
+
+@property(nonatomic, copy) NSString* URL;
+@property(nonatomic, retain) NSImage* image;
+
+@end
+
+////////////////////////////////////////////////////////////////////////////////
+
+@interface CustomHomePagesModel (InternalOrTestingAPI)
 
 // Clears the URL string at the specified index. This constitutes bad data. The
 // validator should scrub the entry from the list the next time it is run.
-- (void) setURLStringEmptyAt:(NSUInteger)index;
+- (void)setURLStringEmptyAt:(NSUInteger)index;
 
 @end
 
 // A notification that fires when the URL of one of the entries changes.
 // Prevents interested parties from having to observe all model objects in order
 // to persist changes to a single entry. Changes to the number of items in the
 // model can be observed by watching |customHomePages| via KVO so an additional
 // notification is not sent.
 extern NSString* const kHomepageEntryChangedNotification;
 
 #endif  // CHROME_BROWSER_COCOA_CUSTOM_HOME_PAGES_MODEL_H_