Remove fields that are unused and reference classes that do not exist.

chrome/browser/cocoa/browser_window_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.
 
 #ifndef CHROME_BROWSER_COCOA_BROWSER_WINDOW_CONTROLLER_H_
 #define CHROME_BROWSER_COCOA_BROWSER_WINDOW_CONTROLLER_H_
 
 // A class acting as the Objective-C controller for the Browser
 // object. Handles interactions between Cocoa and the cross-platform
 // code. Each window has a single toolbar and, by virtue of being a
@@ skipping 24 matching lines @@
 @class GTMWindowSheetController;
 @class IncognitoImageView;
 @class InfoBarContainerController;
 class LocationBar;
 class StatusBubbleMac;
 class TabContents;
 @class TabStripController;
 class TabStripModelObserverBridge;
 @class TabStripView;
 @class ToolbarController;
-@class TitlebarController;
 
 
 @interface BrowserWindowController :
   TabWindowController<NSUserInterfaceValidations,
                       BookmarkBarControllerDelegate,
                       BrowserCommandExecutor,
                       ViewResizer> {
  @private
   // The ordering of these members is important as it determines the order in
   // which they are destroyed. |browser_| needs to be destroyed last as most of
   // the other objects hold weak references to it or things it owns
   // (tab/toolbar/bookmark models, profiles, etc).
   scoped_ptr<Browser> browser_;
   NSWindow* savedRegularWindow_;
   scoped_ptr<TabStripModelObserverBridge> tabObserver_;
   scoped_ptr<BrowserWindowCocoa> windowShim_;
   scoped_nsobject<ToolbarController> toolbarController_;
-  scoped_nsobject<TitlebarController> titlebarController_;
   scoped_nsobject<TabStripController> tabStripController_;
   scoped_nsobject<FindBarCocoaController> findBarCocoaController_;
   scoped_nsobject<InfoBarContainerController> infoBarContainerController_;
   scoped_nsobject<DownloadShelfController> downloadShelfController_;
   scoped_nsobject<BookmarkBarController> bookmarkBarController_;
   scoped_nsobject<FullscreenController> fullscreenController_;
 
   // Strong. StatusBubble is a special case of a strong reference that
   // we don't wrap in a scoped_ptr because it is acting the same
   // as an NSWindowController in that it wraps a window that must
@@ skipping 298 matching lines @@
 - (NSWindow*)createFullscreenWindow;
 
 // Resets any saved state about window growth (due to showing the bookmark bar
 // or the download shelf), so that future shrinking will occur from the bottom.
 - (void)resetWindowGrowthState;
 
 @end  // @interface BrowserWindowController(TestingAPI)
 
 
 #endif  // CHROME_BROWSER_COCOA_BROWSER_WINDOW_CONTROLLER_H_