Fixing drag and drop visibility issues of tabs on a visiting desktop

chrome/browser/ui/ash/multi_user_window_manager.cc

Index: chrome/browser/ui/ash/multi_user_window_manager.cc
diff --git a/chrome/browser/ui/ash/multi_user_window_manager.cc b/chrome/browser/ui/ash/multi_user_window_manager.cc
index b54fdb74eea3dcf94e6a568d8f625744da5c4a9f..81ad014c649c6e55e3b978b8d31de3ee1caf290e 100644
--- a/chrome/browser/ui/ash/multi_user_window_manager.cc
+++ b/chrome/browser/ui/ash/multi_user_window_manager.cc
@@ -168,6 +168,9 @@ void MultiUserWindowManager::SetWindowOwner(aura::Window* window,
   DCHECK(GetWindowOwner(window).empty());
   window_to_entry_[window] = new WindowEntry(user_id);
 
+  // Remember the initial visibility of the window.
+  window_to_entry_[window]->set_show(window->IsVisible());
+
   // Set the window and the state observer.
   window->AddObserver(this);
   ash::wm::GetWindowState(window)->AddObserver(this);
@@ -203,10 +206,13 @@ void MultiUserWindowManager::ShowWindowForUser(aura::Window* window,
   it->second->set_show_for_user(user_id);
 
   // Show the window if the added user is the current one.
-  if (user_id == current_user_id_)
-    SetWindowVisibility(window, true);
-  else
+  if (user_id == current_user_id_) {
+    // Only show the window if it should be shown according to its state.
+    if (it->second->show())
+      SetWindowVisibility(window, true);
+  } else {
     SetWindowVisibility(window, false);
+  }
 }
 
 bool MultiUserWindowManager::AreWindowsSharedAmongUsers() {