Remove WebContents::GetRoutingID().

chrome/browser/loader/chrome_resource_dispatcher_host_delegate.cc

Index: chrome/browser/loader/chrome_resource_dispatcher_host_delegate.cc
diff --git a/chrome/browser/loader/chrome_resource_dispatcher_host_delegate.cc b/chrome/browser/loader/chrome_resource_dispatcher_host_delegate.cc
index cde562989399e1a5cbb13dff2ccda27a1e7e7b20..988e99c92858bf4baaf35dfcb4c8ccbd83da58a6 100644
--- a/chrome/browser/loader/chrome_resource_dispatcher_host_delegate.cc
+++ b/chrome/browser/loader/chrome_resource_dispatcher_host_delegate.cc
@@ -244,10 +244,12 @@ void LaunchURL(
   // we assume it can be executed.
   if (is_whitelisted) {
     ExternalProtocolHandler::LaunchUrlWithoutSecurityCheck(
-        url, render_process_id, web_contents->GetRoutingID());
+        url, render_process_id,
+        web_contents->GetRenderViewHost()->GetRoutingID());
   } else {
     ExternalProtocolHandler::LaunchUrlWithDelegate(
-        url, render_process_id, web_contents->GetRoutingID(), page_transition,
+        url, render_process_id,
+        web_contents->GetRenderViewHost()->GetRoutingID(), page_transition,
         has_user_gesture, g_external_protocol_handler_delegate);
   }
 }