Moves Shell::maximize_mode_controller() to WmShell

chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos_unittest.cc

Index: chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos_unittest.cc
diff --git a/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos_unittest.cc b/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos_unittest.cc
index 1ba92ce117506cbc88159d959b2ff30f3b2a55fd..afebc41fcebc688a23c129263268d83a902d27cf 100644
--- a/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos_unittest.cc
+++ b/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos_unittest.cc
@@ -246,14 +246,15 @@ class MultiUserWindowManagerChromeOSTest : public AshTestBase {
   // Create a maximize mode window manager.
   MaximizeModeWindowManager* CreateMaximizeModeWindowManager() {
     EXPECT_FALSE(maximize_mode_window_manager());
-    Shell::GetInstance()->maximize_mode_controller()->
-        EnableMaximizeModeWindowManager(true);
+    WmShell::Get()->maximize_mode_controller()->EnableMaximizeModeWindowManager(
+        true);
     return maximize_mode_window_manager();
   }
 
   MaximizeModeWindowManager* maximize_mode_window_manager() {
-    return Shell::GetInstance()->maximize_mode_controller()->
-        maximize_mode_window_manager_.get();
+    return WmShell::Get()
+        ->maximize_mode_controller()
+        ->maximize_mode_window_manager_.get();
   }
 
  private: