fix external protocol handling for OOPIFs

chrome/browser/ui/external_protocol_dialog_delegate.cc

 // Copyright (c) 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.
 
 #include "chrome/browser/ui/external_protocol_dialog_delegate.h"
 
 #include "chrome/browser/external_protocol/external_protocol_handler.h"
+#include "chrome/browser/tab_contents/tab_util.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
 #include "components/strings/grit/components_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/text_elider.h"
 
 namespace {
 
 const size_t kMaxCommandSize = 32;
 
@@ skipping 40 matching lines @@
                                     ElideCommandName(program_name_));
 }
 
 void ExternalProtocolDialogDelegate::DoAccept(const GURL& url,
                                               bool dont_block) const {
   if (dont_block) {
     ExternalProtocolHandler::SetBlockState(url.scheme(),
                                            ExternalProtocolHandler::DONT_BLOCK);
   }
 
-  ExternalProtocolHandler::LaunchUrlWithoutSecurityCheck(
-      url, render_process_host_id_, tab_contents_id_);
+  content::WebContents* web_contents =
+      tab_util::GetWebContentsByID(render_process_host_id_, tab_contents_id_);
+
+  ExternalProtocolHandler::LaunchUrlWithoutSecurityCheck(url, web_contents);
 }
 
 void ExternalProtocolDialogDelegate::DoCancel(const GURL& url,
                                               bool dont_block) const {
   if (dont_block) {
     ExternalProtocolHandler::SetBlockState(url.scheme(),
                                            ExternalProtocolHandler::BLOCK);
   }
 }