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

chrome/browser/ui/panels/panel.cc

 // 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.
 
 #include "chrome/browser/ui/panels/panel.h"
 
 #include "base/logging.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 456 matching lines @@
 bool Panel::InPresentationMode() {
   NOTIMPLEMENTED();
   return false;
 }
 #endif
 
 void Panel::ShowInstant(TabContentsWrapper* preview) {
   NOTIMPLEMENTED();
 }
 
-void Panel::HideInstant(bool instant_is_active) {
+void Panel::HideInstant() {
   NOTIMPLEMENTED();
 }
 
 gfx::Rect Panel::GetInstantBounds() {
   NOTIMPLEMENTED();
   return gfx::Rect();
 }
 
 WindowOpenDisposition Panel::GetDispositionForPopupBounds(
     const gfx::Rect& bounds) {
@@ skipping 69 matching lines @@
   RequestRenderViewHostToDisableScrollbars(GetRenderViewHost());
 }
 
 Browser* Panel::browser() const {
   return native_panel_->GetPanelBrowser();
 }
 
 void Panel::DestroyBrowser() {
   native_panel_->DestroyPanelBrowser();
 }