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

chrome/browser/ui/views/profiles/user_manager_view.cc

 // Copyright 2014 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/views/profiles/user_manager_view.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
@@ skipping 80 matching lines @@
     : UserManager::ReauthDialogObserver(
           web_view->GetWebContents(), email_address),
       web_view_(web_view),
       email_address_(email_address) {
   AddChildView(web_view_);
   SetLayoutManager(new views::FillLayout());
 
   // Load the re-auth URL, prepopulated with the user's email address.
   // Add the index of the profile to the URL so that the inline login page
   // knows which profile to load and update the credentials.
-  GURL url = signin::GetReauthURLWithEmail(email_address_);
+  GURL url = signin::GetReauthURLWithEmail(
+      signin_metrics::ACCESS_POINT_USER_MANAGER, signin_metrics::REASON_UNLOCK,

[sky, 2015/12/03 22:45:28]

Isn't this reauth?

[gogerald1, 2015/12/04 20:49:09]

Here we unlocking the profile, the unlock process is an re-authentication
process, but we define the reason to be the purpose of getting the URL from user
point of view, so we say it is "UNLOCK".

+      email_address_);
   web_view_->LoadInitialURL(url);
 }
 
 gfx::Size ReauthDelegate::GetPreferredSize() const {
   return gfx::Size(UserManager::kReauthDialogWidth,
                    UserManager::kReauthDialogHeight);
 }
 
 bool ReauthDelegate::CanResize() const {
   return true;
@@ skipping 260 matching lines @@
   // Now that the window is closed, we can allow a new one to be opened.
   // (WindowClosing comes in asynchronously from the call to Close() and we
   // may have already opened a new instance).
   if (instance_ == this)
     instance_ = NULL;
 }
 
 bool UserManagerView::UseNewStyleForThisDialog() const {
   return false;
 }