Fix crash when using Instant.

chrome/browser/ui/cocoa/tabs/tab_strip_controller.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_UI_COCOA_TABS_TAB_STRIP_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_TABS_TAB_STRIP_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_nsobject.h"
@@ skipping 28 matching lines @@
 // Stripped down version of TabStripModelObserverBridge:tabReplacedWithContents.
 - (void)onReplaceTabWithContents:(content::WebContents*)contents;
 
 // Stripped down version of TabStripModelObserverBridge:tabChangedWithContents.
 - (void)onTabChanged:(TabStripModelObserver::TabChangeType)change
         withContents:(content::WebContents*)contents;
 
 // Stripped down version of TabStripModelObserverBridge:tabDetachedWithContents.
 - (void)onTabDetachedWithContents:(content::WebContents*)contents;
 
+// Stripped down version of TabStripModelObserverBridge:insertTabWithContents.
+- (void)onInsertTabWithContents:(content::WebContents*)contents;
+
 @end
 
 // A class that handles managing the tab strip in a browser window. It uses
 // a supporting C++ bridge object to register for notifications from the
 // TabStripModel. The Obj-C part of this class handles drag and drop and all
 // the other Cocoa-y aspects.
 //
 // For a full description of the design, see
 // http://www.chromium.org/developers/design-documents/tab-strip-mac
 @interface TabStripController :
@@ skipping 192 matching lines @@
 
 // Returns the currently active TabContentsController.
 - (TabContentsController*)activeTabContentsController;
 
 @end
 
 // Returns the parent view to use when showing a sheet for a given tab contents.
 NSView* GetSheetParentViewForTabContents(TabContents* tab_contents);
 
 #endif  // CHROME_BROWSER_UI_COCOA_TABS_TAB_STRIP_CONTROLLER_H_