Don't allow inline install if frame is deleted before user accepts

chrome/browser/extensions/webstore_inline_installer_factory.h

 // Copyright 2013 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_EXTENSIONS_WEBSTORE_INLINE_INSTALLER_FACTORY_H_
 #define CHROME_BROWSER_EXTENSIONS_WEBSTORE_INLINE_INSTALLER_FACTORY_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/extensions/extension_install_prompt.h"
 #include "chrome/browser/extensions/webstore_standalone_installer.h"
 
 namespace content {
-  class WebContents;
+class WebContents;
 }
 
 class GURL;
 
 namespace extensions {
 
 class WebstoreInlineInstaller;
 
 class WebstoreInlineInstallerFactory {
  public:
   virtual ~WebstoreInlineInstallerFactory() {}
 
   // Create a new WebstoreInlineInstallerInstance to be owned by the caller.
   virtual WebstoreInlineInstaller* CreateInstaller(
       content::WebContents* contents,
+      content::RenderFrameHost* host,
       const std::string& webstore_item_id,
       const GURL& requestor_url,
       const WebstoreStandaloneInstaller::Callback& callback);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_WEBSTORE_INLINE_INSTALLER_FACTORY_H_