fix external protocol handling for OOPIFs

chrome/browser/ui/cocoa/external_protocol_dialog.mm

 // Copyright (c) 2012 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.
 
 #import "chrome/browser/ui/cocoa/external_protocol_dialog.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram_macros.h"
 #include "chrome/browser/external_protocol/external_protocol_handler.h"
 #include "chrome/browser/shell_integration.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_mac.h"
 #include "ui/gfx/text_elider.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 // ExternalProtocolHandler
 
 // static
@@ skipping 89 matching lines @@
     ExternalProtocolHandler::SetBlockState(url_.scheme(), blockState);
     ExternalProtocolHandler::RecordMetrics(true);
   } else {
     ExternalProtocolHandler::RecordMetrics(false);
   }
 
   if (blockState == ExternalProtocolHandler::DONT_BLOCK) {
     UMA_HISTOGRAM_LONG_TIMES("clickjacking.launch_url",
                              base::Time::Now() - creation_time_);
 
-    ExternalProtocolHandler::LaunchUrlWithoutSecurityCheck(
-        url_, render_process_host_id_, routing_id_);
+    content::WebContents* web_contents =
+        tab_util::GetWebContentsByID(render_process_host_id_, routing_id_);
+
+    ExternalProtocolHandler::LaunchUrlWithoutSecurityCheck(url_, web_contents);
   }
 
   [self autorelease];
 }
 
 @end