Close the ntp during startup when opening a link on Mac.

chrome/browser/app_controller_mac.h

 // Copyright (c) 2012 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_APP_CONTROLLER_MAC_H_
 #define CHROME_BROWSER_APP_CONTROLLER_MAC_H_
 
 #if defined(__OBJC__)
 
 #import <Cocoa/Cocoa.h>
@@ skipping 106 matching lines @@
 
 // Toggles the "Confirm to Quit" preference.
 - (IBAction)toggleConfirmToQuit:(id)sender;
 
 // Delegate method to return the dock menu.
 - (NSMenu*)applicationDockMenu:(NSApplication*)sender;
 
 // Get the URLs that Launch Services expects the browser to open at startup.
 - (const std::vector<GURL>&)startupUrls;
 
-// Clear the list of startup URLs.
-- (void)clearStartupUrls;
-
 - (BookmarkMenuBridge*)bookmarkMenuBridge;
 
 // Subscribes/unsubscribes from the work area change notification.
 - (void)addObserverForWorkAreaChange:(ui::WorkAreaWatcherObserver*)observer;
 - (void)removeObserverForWorkAreaChange:(ui::WorkAreaWatcherObserver*)observer;
 
 // Initializes the AppShimMenuController. This enables changing the menu bar for
 // apps.
 - (void)initAppShimMenuController;
 
 @end
 
 #endif  // __OBJC__
 
 // Functions that may be accessed from non-Objective-C C/C++ code.
 
 namespace app_controller_mac {
 
 // True if we are currently handling an IDC_NEW_{TAB,WINDOW} command. Used in
 // SessionService::Observe() to get around windows/linux and mac having
 // different models of application lifetime.
 bool IsOpeningNewWindow();
 
 }  // namespace app_controller_mac
 
 #endif