Don't rely on user gestures for deciding when to dismiss infobars.

chrome/browser/tab_contents/confirm_infobar_delegate.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_TAB_CONTENTS_CONFIRM_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_TAB_CONTENTS_CONFIRM_INFOBAR_DELEGATE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
@@ skipping 41 matching lines @@
   // the link was clicked). This function returns true if the InfoBar should be
   // closed now or false if it should remain until the user explicitly closes
   // it.
   // Will only be called if GetLinkText() returns non-empty string.
   virtual bool LinkClicked(WindowOpenDisposition disposition);
 
  protected:
   explicit ConfirmInfoBarDelegate(TabContents* contents);
   virtual ~ConfirmInfoBarDelegate();
 
+  virtual bool ShouldExpire(
+      const content::LoadCommittedDetails& details) const OVERRIDE;
+
  private:
   // InfoBarDelegate:
   virtual InfoBar* CreateInfoBar(TabContentsWrapper* owner) OVERRIDE;
   virtual bool EqualsDelegate(InfoBarDelegate* delegate) const OVERRIDE;
   virtual ConfirmInfoBarDelegate* AsConfirmInfoBarDelegate() OVERRIDE;
 
   DISALLOW_COPY_AND_ASSIGN(ConfirmInfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_CONFIRM_INFOBAR_DELEGATE_H_