Implement newly designed sign-in related histograms for desktop platorms.

chrome/browser/ui/webui/local_discovery/local_discovery_ui_handler.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/local_discovery/local_discovery_ui_handler.h"
 
 #include <set>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 243 matching lines @@
   chrome::AddSelectedTabWithURL(browser,
                                 cloud_devices::GetCloudPrintManageDeviceURL(id),
                                 ui::PAGE_TRANSITION_FROM_API);
 }
 
 void LocalDiscoveryUIHandler::HandleShowSyncUI(
     const base::ListValue* args) {
   Browser* browser = chrome::FindBrowserWithWebContents(
       web_ui()->GetWebContents());
   DCHECK(browser);
-  chrome::ShowBrowserSignin(browser, signin_metrics::SOURCE_DEVICES_PAGE);
+  chrome::ShowBrowserSignin(
+      browser, signin_metrics::AccessPoint::ACCESS_POINT_DEVICES_PAGE);
 }
 
 void LocalDiscoveryUIHandler::StartRegisterHTTP(
     scoped_ptr<PrivetHTTPClient> http_client) {
   current_http_client_ = PrivetV1HTTPClient::CreateDefault(http_client.Pass());
 
   std::string user = GetSyncAccount();
 
   if (!current_http_client_) {
     SendRegisterError();
@@ skipping 365 matching lines @@
 
 void LocalDiscoveryUIHandler::RefreshCloudPrintStatusFromService() {
   if (cloud_print_connector_ui_enabled_)
     CloudPrintProxyServiceFactory::GetForProfile(Profile::FromWebUI(web_ui()))->
         RefreshStatusFromService();
 }
 
 #endif // cloud print connector option stuff
 
 }  // namespace local_discovery