Rename |tab_contents_id| to |render_view_routing_id|.

chrome/browser/external_protocol/external_protocol_handler.h

Index: chrome/browser/external_protocol/external_protocol_handler.h
diff --git a/chrome/browser/external_protocol/external_protocol_handler.h b/chrome/browser/external_protocol/external_protocol_handler.h
index 611f120ad941332b1ee3481667a7996a47752abe..99c0f0384b6acd059c5e9e22e8234277c4f0c0f8 100644
--- a/chrome/browser/external_protocol/external_protocol_handler.h
+++ b/chrome/browser/external_protocol/external_protocol_handler.h
@@ -65,7 +65,7 @@ class ExternalProtocolHandler {
   // Allowing use of a delegate to facilitate unit testing.
   static void LaunchUrlWithDelegate(const GURL& url,
                                     int render_process_host_id,
-                                    int tab_contents_id,
+                                    int render_view_routing_id,
                                     ui::PageTransition page_transition,
                                     bool has_user_gesture,
                                     Delegate* delegate);