Fix the mis-showing of the panel window during profile switch.

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

Index: chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc
diff --git a/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc b/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc
index bef7236f5695bf21d71ac30fff8af0385b574c1e..5c5533e5eb0bb4b7b636e08a5f877401e8abba31 100644
--- a/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc
+++ b/chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc
@@ -627,7 +627,11 @@ bool MultiUserWindowManagerChromeOS::ShowWindowForUserIntern(
 
 void MultiUserWindowManagerChromeOS::SetWindowVisibility(
     aura::Window* window, bool visible, int animation_time_in_ms) {
-  if (window->IsVisible() == visible)
+  // For a panel window, it's possible that this panel window is in the middle
+  // of relayout animation because of hiding/reshowing shelf during profile
+  // switch. Thus the window's visibility might not be its real visibility. See
+  // crbug.com/564725 for more info.
+  if (window->IsVisible() == visible && window->layer()->IsDrawn())

[oshima, 2016/02/11 23:31:56]

I dug a bit more and I think the following is the right one.

if (window->TargetVisibility() == visible)

or

if (window->layer()->GetTargetVisibility() == visible)

     return;
 
   // Hiding a system modal dialog should not be allowed. Instead we switch to
@@ -778,10 +782,6 @@ void MultiUserWindowManagerChromeOS::SetWindowVisible(
     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(