Mac: Select right tab in content settings dialog.

chrome/browser/cocoa/content_settings_dialog_controller.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.
 
 #import <Cocoa/Cocoa.h>
 
 #import "base/cocoa_protocols_mac.h"
+#include "base/scoped_ptr.h"
 #include "chrome/common/content_settings_types.h"
 #include "chrome/browser/pref_member.h"
 
+class PrefObserverBridge;
 class Profile;
 
 // This controller manages a dialog that lets the user manage the content
 // settings for several content setting types.
 @interface ContentSettingsDialogController
-    : NSWindowController<NSWindowDelegate> {
+    : NSWindowController<NSWindowDelegate, NSTabViewDelegate> {
  @private
+  IBOutlet NSTabView* tabView_;
   Profile* profile_;  // weak
   IntegerPrefMember lastSelectedTab_;
   BooleanPrefMember clearSiteDataOnExit_;
+  scoped_ptr<PrefObserverBridge> observer_;  // Watches for pref changes.
 }
 
 // Show the content settings dialog associated with the given profile (or the
 // original profile if this is an incognito profile).  If no content settings
 // dialog exists for this profile, create one and show it.  Any resulting
 // editor releases itself when closed.
 +(id)showContentSettingsForType:(ContentSettingsType)settingsType
                         profile:(Profile*)profile;
 
 - (IBAction)showCookies:(id)sender;
 - (IBAction)openFlashPlayerSettings:(id)sender;
 
 - (IBAction)showCookieExceptions:(id)sender;
 - (IBAction)showImagesExceptions:(id)sender;
 - (IBAction)showJavaScriptExceptions:(id)sender;
 - (IBAction)showPluginsExceptions:(id)sender;
 - (IBAction)showPopupsExceptions:(id)sender;
 
 @end