Fixes bug in instant where we would end up incorrectly using the

chrome/browser/ui/panels/panel.h

 // Copyright (c) 2011 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_PANELS_PANEL_H_
 #define CHROME_BROWSER_UI_PANELS_PANEL_H_
 #pragma once
 
 #include "chrome/browser/ui/browser_window.h"
 
@@ skipping 129 matching lines @@
       Profile* profile, const Extension* app) OVERRIDE;
   virtual void Cut() OVERRIDE;
   virtual void Copy() OVERRIDE;
   virtual void Paste() OVERRIDE;
 #if defined(OS_MACOSX)
   virtual void OpenTabpose() OVERRIDE;
   virtual void SetPresentationMode(bool presentation_mode) OVERRIDE;
   virtual bool InPresentationMode() OVERRIDE;
 #endif
   virtual void ShowInstant(TabContentsWrapper* preview) OVERRIDE;
-  virtual void HideInstant(bool instant_is_active) OVERRIDE;
+  virtual void HideInstant() OVERRIDE;
   virtual gfx::Rect GetInstantBounds() OVERRIDE;
   virtual WindowOpenDisposition GetDispositionForPopupBounds(
       const gfx::Rect& bounds) OVERRIDE;
   virtual FindBar* CreateFindBar() OVERRIDE;
 #if defined(OS_CHROMEOS)
   virtual void ShowKeyboardOverlay(gfx::NativeWindow owning_window) OVERRIDE;
 #endif
   virtual void UpdatePreferredSize(TabContents* tab_contents,
                                    const gfx::Size& pref_size) OVERRIDE;
   virtual void ShowAvatarBubble(TabContents* tab_contents,
@@ skipping 68 matching lines @@
   // Stores the full height of the panel so we can restore it after it's
   // been minimized.
   int restored_height_;
 
   NotificationRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(Panel);
 };
 
 #endif  // CHROME_BROWSER_UI_PANELS_PANEL_H_