Fixing problem with the maximize mode where MultiProfile windows do not get properly handled

chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.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/ui/ash/multi_user/multi_user_window_manager_chromeos.h"
 
 #include "apps/app_window.h"
 #include "apps/app_window_registry.h"
 #include "ash/ash_switches.h"
 #include "ash/multi_profile_uma.h"
 #include "ash/root_window_controller.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shelf/shelf.h"
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
 #include "ash/shell_window_ids.h"
 #include "ash/system/tray/system_tray_notifier.h"
+#include "ash/wm/maximize_mode/maximize_mode_controller.h"
 #include "ash/wm/window_state.h"
 #include "base/auto_reset.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/login/users/user_manager.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/ash/multi_user/multi_user_notification_blocker_chromeos.h"
@@ skipping 657 matching lines @@
     // dependents have been shown previously already.
     base::AutoReset<bool> suppressor(&suppress_visibility_changes_, true);
     window->Show();
   }
 }
 
 void MultiUserWindowManagerChromeOS::SetWindowVisible(
     aura::Window* window,
     bool visible,
     int animation_time_in_ms) {
+  // The MaximizeModeWindowManager will not handle invisible windows since they
+  // are not user activatable. Since invisible windows are not being tracked,
+  // we tell it to maximize / track this window now before it gets shown, to
+  // reduce animation jank from multiple resizes.
+  if (visible)
+    ash::Shell::GetInstance()->maximize_mode_controller()->AddWindow(window);
+
   AnimationSetter animation_setter(
       window,
       GetAdjustedAnimationTimeInMS(animation_time_in_ms));
 
   if (visible)
     window->Show();
   else
     window->Hide();
 
   // Make sure that animations have no influence on the window state after the
   // call.
   DCHECK_EQ(visible, window->IsVisible());
 }
 
 int MultiUserWindowManagerChromeOS::GetAdjustedAnimationTimeInMS(
     int default_time_in_ms) const {
   return animation_speed_ == ANIMATION_SPEED_NORMAL ? default_time_in_ms :
       (animation_speed_ == ANIMATION_SPEED_FAST ? 10 : 0);
 }
 
 }  // namespace chrome