cros: Clean up SessionStateDelegate refs in Chrome

chrome/browser/memory/tab_manager.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 "chrome/browser/memory/tab_manager.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <set>
@@ skipping 38 matching lines @@
 #include "components/variations/variations_associated_data.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/memory_pressure_controller.h"
 #include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/page_importance_signals.h"
 
 #if defined(OS_CHROMEOS)
 #include "ash/common/multi_profile_uma.h"
-#include "ash/common/session/session_state_delegate.h"
 #include "ash/common/wm_shell.h"
 #include "chrome/browser/memory/tab_manager_delegate_chromeos.h"
+#include "components/user_manager/user_manager.h"
 #endif
 
 using base::TimeDelta;
 using base::TimeTicks;
 using content::BrowserThread;
 using content::WebContents;
 
 namespace memory {
 namespace {
 
@@ skipping 488 matching lines @@
 void TabManager::RecordDiscardStatistics() {
   discard_count_++;
 
   // TODO(jamescook): Maybe incorporate extension count?
   UMA_HISTOGRAM_CUSTOM_COUNTS("Tabs.Discard.TabCount", GetTabCount(), 1, 100,
                               50);
 #if defined(OS_CHROMEOS)
   // Record the discarded tab in relation to the amount of simultaneously
   // logged in users.
   if (ash::WmShell::HasInstance()) {
-    ash::MultiProfileUMA::RecordDiscardedTab(ash::WmShell::Get()
-                                                 ->GetSessionStateDelegate()
-                                                 ->NumberOfLoggedInUsers());
+    ash::MultiProfileUMA::RecordDiscardedTab(
+        user_manager::UserManager::Get()->GetLoggedInUsers().size());
   }
 #endif
   // TODO(jamescook): If the time stats prove too noisy, then divide up users
   // based on how heavily they use Chrome using tab count as a proxy.
   // Bin into <= 1, <= 2, <= 4, <= 8, etc.
   if (last_discard_time_.is_null()) {
     // This is the first discard this session.
     TimeDelta interval = NowTicks() - start_time_;
     int interval_seconds = static_cast<int>(interval.InSeconds());
     // Record time in seconds over an interval of approximately 1 day.
@@ skipping 449 matching lines @@
   // platform.
   std::string allow_multiple_discards = variations::GetVariationParamValue(
       features::kAutomaticTabDiscarding.name, "AllowMultipleDiscards");
   return (allow_multiple_discards != "true");
 #else
   return false;
 #endif
 }
 
 }  // namespace memory