Code Cleanup: Remove unused declaration...

chrome/browser/tab_contents/tab_contents_view_mac.mm

 // 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 <Carbon/Carbon.h>
 
 #include "chrome/browser/tab_contents/tab_contents_view_mac.h"
 
 #include <string>
 
@@ skipping 319 matching lines @@
   switch (type.value) {
     case NotificationType::TAB_CONTENTS_CONNECTED: {
       sad_tab_.reset();
       break;
     }
     default:
       NOTREACHED() << "Got a notification we didn't register for.";
   }
 }
 
-@interface NSApplication(SPI)
-- (void)_cycleWindowsReversed:(BOOL)reversed;
-@end
-
 @implementation TabContentsViewCocoa
 
 - (id)initWithTabContentsViewMac:(TabContentsViewMac*)w {
   self = [super initWithFrame:NSZeroRect];
   if (self != nil) {
     tabContentsView_ = w;
     dropTarget_.reset(
         [[WebDropTarget alloc] initWithTabContents:[self tabContents]]);
     [self registerDragTypes];
     // TabContentsViewCocoa's ViewID may be changed to VIEW_ID_DEV_TOOLS_DOCKED
@@ skipping 154 matching lines @@
       [[[notification userInfo] objectForKey:kSelectionDirection]
         unsignedIntegerValue];
   if (direction == NSDirectSelection)
     return;
 
   [self tabContents]->
       FocusThroughTabTraversal(direction == NSSelectingPrevious);
 }
 
 @end