Instant: Use only one hidden WebContents per profile.

chrome/browser/infobars/infobar_container.h

Index: chrome/browser/infobars/infobar_container.h
diff --git a/chrome/browser/infobars/infobar_container.h b/chrome/browser/infobars/infobar_container.h
index 3808fb3acac68496e0a61e30ca6449367de443c7..6aebe0efe8cc595d7ef14faf5c419eefc185c284 100644
--- a/chrome/browser/infobars/infobar_container.h
+++ b/chrome/browser/infobars/infobar_container.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright 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.
 
@@ -9,7 +9,6 @@
 
 #include "base/compiler_specific.h"
 #include "base/time.h"
-#include "chrome/browser/instant/instant_overlay_model_observer.h"
 #include "chrome/browser/ui/search/search_model_observer.h"
 #include "chrome/common/search_types.h"
 #include "content/public/browser/notification_observer.h"
@@ -50,8 +49,7 @@ class SearchModel;
 // would re-show the infobars only to instantly animate them closed.  The window
 // to re-hide infobars without animation is canceled if a tab change occurs.
 class InfoBarContainer : public content::NotificationObserver,
-                         public chrome::search::SearchModelObserver,
-                         public InstantOverlayModelObserver {
+                         public chrome::search::SearchModelObserver {
  public:
   class Delegate {
    public:
@@ -110,8 +108,7 @@ class InfoBarContainer : public content::NotificationObserver,
 
   const Delegate* delegate() const { return delegate_; }
 
-  // InstantOverlayModelObserver:
-  virtual void OverlayStateChanged(const InstantOverlayModel& model) OVERRIDE;
+  void InstantOverlayShown();
 
  protected:
   // Subclasses must call this during destruction, so that we can remove