Misc. infobar stuff:

chrome/browser/tab_contents/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_INFOBAR_DELEGATE_H_
 #define CHROME_BROWSER_TAB_CONTENTS_INFOBAR_DELEGATE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/string16.h"
 #include "content/browser/tab_contents/navigation_controller.h"
 #include "webkit/glue/window_open_disposition.h"
 
 class ConfirmInfoBarDelegate;
 class ExtensionInfoBarDelegate;
 class InfoBar;
 class LinkInfoBarDelegate;
 class PluginInstallerInfoBarDelegate;
+class TabContents;
 class ThemeInstalledInfoBarDelegate;
 class TranslateInfoBarDelegate;
 
 namespace gfx {
 class Image;
 }
 
 // An interface implemented by objects wishing to control an InfoBar.
 // Implementing this interface is not sufficient to use an InfoBar, since it
 // does not map to a specific InfoBar type. Instead, you must implement either
 // LinkInfoBarDelegate or ConfirmInfoBarDelegate, or override with your own
 // delegate for your own InfoBar variety.
 class InfoBarDelegate {
  public:
   // The type of the infobar. It controls its appearance, such as its background
   // color.
   enum Type {
     WARNING_TYPE,
     PAGE_ACTION_TYPE,
   };
 
   virtual ~InfoBarDelegate();
 
   // Called to create the InfoBar. Implementation of this method is
   // platform-specific.
-  virtual InfoBar* CreateInfoBar() = 0;
+  virtual InfoBar* CreateInfoBar(TabContents* owner) = 0;
 
   // Returns true if the supplied |delegate| is equal to this one. Equality is
   // left to the implementation to define. This function is called by the
   // TabContents when determining whether or not a delegate should be added
   // because a matching one already exists. If this function returns true, the
   // TabContents will not add the new delegate because it considers one to
   // already be present.
   virtual bool EqualsDelegate(InfoBarDelegate* delegate) const;
 
   // Returns true if the InfoBar should be closed automatically after the page
@@ skipping 38 matching lines @@
 
  private:
   // The unique id of the active NavigationEntry of the TabContents that we were
   // opened for. Used to help expire on navigations.
   int contents_unique_id_;
 
   DISALLOW_COPY_AND_ASSIGN(InfoBarDelegate);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_INFOBAR_DELEGATE_H_