Puts the new Material Design User Manager behind a flag

chrome/browser/profiles/profile_window.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/profiles/profile_window.h"
 
 #include <stddef.h>
+#include <string>
+#include <vector>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/about_flags.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
@@ skipping 172 matching lines @@
     const base::FilePath& profile_path_to_focus,
     profiles::UserManagerTutorialMode tutorial_mode,
     profiles::UserManagerProfileSelected profile_open_action,
     const base::Callback<void(Profile*, const std::string&)>& callback,
     Profile* system_profile,
     Profile::CreateStatus status) {
   if (status != Profile::CREATE_STATUS_INITIALIZED || callback.is_null())
     return;
 
   // Tell the webui which user should be focused.
-  std::string page = chrome::kChromeUIUserManagerURL;
+  std::string page = switches::IsMaterialDesignUserManager() ?
+      chrome::kChromeUIMdUserManagerUrl : chrome::kChromeUIUserManagerURL;

[Roger Tawa OOO till Jul 10th, 2016/03/10 18:23:17]

Not part of this CL, but I wonder if this constant should end with "URL" instead
of "Url"?

https://code.google.com/p/chromium/codesearch#chromium/src/chrome/common/url_...

 
   if (tutorial_mode == profiles::USER_MANAGER_TUTORIAL_OVERVIEW) {
     page += profiles::kUserManagerDisplayTutorial;
   } else if (!profile_path_to_focus.empty()) {
     const ProfileInfoCache& cache =
         g_browser_process->profile_manager()->GetProfileInfoCache();
     size_t index = cache.GetIndexOfProfileWithPath(profile_path_to_focus);
     if (index != std::string::npos) {
       page += "#";
       page += base::SizeTToString(index);
@@ skipping 322 matching lines @@
   PrefService* local_state = g_browser_process->local_state();
   const bool dismissed = local_state->GetBoolean(
       prefs::kProfileAvatarRightClickTutorialDismissed);
 
   // Don't show the tutorial if it's already been dismissed or if right-clicking
   // wouldn't show any targets.
   return !dismissed && HasProfileSwitchTargets(profile);
 }
 
 }  // namespace profiles