Ignore title parameter for navigator.registerProtocolHandler.

content/browser/web_contents/web_contents_impl.cc

 // 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.
 
 #include "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 2580 matching lines @@
     return;
 
   ChildProcessSecurityPolicyImpl* policy =
       ChildProcessSecurityPolicyImpl::GetInstance();
   if (policy->CanReadFile(GetRenderProcessHost()->GetID(), path))
     delegate_->EnumerateDirectory(this, request_id, path);
 }
 
 void WebContentsImpl::OnRegisterProtocolHandler(const std::string& protocol,
                                                 const GURL& url,
-                                                const base::string16& title,
+                                                const base::string16&,

[Charlie Reis, 2014/05/08 22:39:46]

Style nit: Please leave the parameter name:
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Functi...
"All parameters should be named, with identical names in the declaration and
implementation."

[meacer, 2014/05/09 01:16:40]

Done.

                                                 bool user_gesture) {
   if (!delegate_)
     return;
 
   ChildProcessSecurityPolicyImpl* policy =
       ChildProcessSecurityPolicyImpl::GetInstance();
   if (policy->IsPseudoScheme(protocol))
     return;
 
-  delegate_->RegisterProtocolHandler(this, protocol, url, title, user_gesture);
+  delegate_->RegisterProtocolHandler(this, protocol, url, user_gesture);
 }
 
 void WebContentsImpl::OnFindReply(int request_id,
                                   int number_of_matches,
                                   const gfx::Rect& selection_rect,
                                   int active_match_ordinal,
                                   bool final_update) {
   if (delegate_) {
     delegate_->FindReply(this, request_id, number_of_matches, selection_rect,
                          active_match_ordinal, final_update);
@@ skipping 1259 matching lines @@
 
 void WebContentsImpl::OnPreferredSizeChanged(const gfx::Size& old_size) {
   if (!delegate_)
     return;
   const gfx::Size new_size = GetPreferredSize();
   if (new_size != old_size)
     delegate_->UpdatePreferredSize(this, new_size);
 }
 
 }  // namespace content