Disable context menu for constrained inline signin

chrome/browser/ui/webui/signin/inline_login_handler_impl.cc

 // Copyright 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/webui/signin/inline_login_handler_impl.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 168 matching lines @@
 
 }  // namespace
 
 InlineLoginHandlerImpl::InlineLoginHandlerImpl()
       : weak_factory_(this),
         choose_what_to_sync_(false) {
 }
 
 InlineLoginHandlerImpl::~InlineLoginHandlerImpl() {}
 
+bool InlineLoginHandlerImpl::HandleContextMenu(
+    const content::ContextMenuParams& params) {
+#ifndef NDEBUG
+  return false;
+#else
+  return true;
+#endif
+}
+
 void InlineLoginHandlerImpl::SetExtraInitParams(base::DictionaryValue& params) {
   params.SetString("service", "chromiumsync");
 
-  signin::Source source =
-      signin::GetSourceForPromoURL(web_ui()->GetWebContents()->GetURL());
+  content::WebContents* contents = web_ui()->GetWebContents();
+  const GURL& current_url = contents->GetURL();
+  std::string is_constrained;
+  net::GetValueForKeyInQuery(current_url, "constrained", &is_constrained);
+  if (is_constrained == "1")
+    contents->SetDelegate(this);
+
+  signin::Source source = signin::GetSourceForPromoURL(current_url);
   OneClickSigninHelper::LogHistogramValue(
       source, one_click_signin::HISTOGRAM_SHOWN);
 }
 
 void InlineLoginHandlerImpl::CompleteLogin(const base::ListValue* args) {
   content::WebContents* contents = web_ui()->GetWebContents();
   const GURL& current_url = contents->GetURL();
 
   const base::DictionaryValue* dict = NULL;
   args->GetDictionary(0, &dict);
@@ skipping 154 matching lines @@
     TabStripModel* tab_strip_model = browser->tab_strip_model();
     if (tab_strip_model) {
       int index = tab_strip_model->GetIndexOfWebContents(tab);
       if (index != TabStripModel::kNoTab) {
         tab_strip_model->ExecuteContextMenuCommand(
             index, TabStripModel::CommandCloseTab);
       }
     }
   }
 }