mash: Migrate SessionStateDelegate access to WmShell.

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 36 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/session/session_state_delegate.h"
+#include "ash/common/wm_shell.h"
 #include "ash/multi_profile_uma.h"
-#include "ash/shell.h"
 #include "chrome/browser/memory/tab_manager_delegate_chromeos.h"
 #endif
 
 using base::TimeDelta;
 using base::TimeTicks;
 using content::BrowserThread;
 using content::WebContents;
 
 namespace memory {
 namespace {
@@ skipping 308 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::Shell::HasInstance()) {
-    ash::MultiProfileUMA::RecordDiscardedTab(ash::Shell::GetInstance()
-                                                 ->session_state_delegate()
+  if (ash::WmShell::HasInstance()) {
+    ash::MultiProfileUMA::RecordDiscardedTab(ash::WmShell::Get()
+                                                 ->GetSessionStateDelegate()
                                                  ->NumberOfLoggedInUsers());
   }
 #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());
@@ skipping 484 matching lines @@
     }
   } else {
     // The code here can only be tested under a full browser test.
     AddTabStats(&stats_list);
   }
 
   return stats_list;
 }
 
 }  // namespace memory