Supports window teleports for notifications.

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 3e3d98c3df7ad27643c77b21f79dcbc144caa766..3c049db7f7ad71f83fe07b2b48de3bacc173b305 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
@@ -23,6 +23,7 @@
 #include "chrome/browser/chromeos/login/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"
 #include "chrome/browser/ui/ash/multi_user/multi_user_util.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
@@ -36,6 +37,7 @@
 #include "ui/aura/window.h"
 #include "ui/base/ui_base_types.h"
 #include "ui/events/event.h"
+#include "ui/message_center/message_center.h"
 
 namespace {
 
@@ -176,6 +178,8 @@ class AppObserver : public apps::ShellWindowRegistry::Observer {
 MultiUserWindowManagerChromeOS::MultiUserWindowManagerChromeOS(
     const std::string& current_user_id)
     : current_user_id_(current_user_id),
+      notification_blocker_(new MultiUserNotificationBlockerChromeOS(
+          message_center::MessageCenter::Get())),
       suppress_visibility_changes_(false) {
   // Add a session state observer to be able to monitor session changes.
   if (ash::Shell::HasInstance())
@@ -247,6 +251,8 @@ void MultiUserWindowManagerChromeOS::SetWindowOwner(
   // will add the children but not the owner to the transient children map.
   AddTransientOwnerRecursive(window, window);
 
+  notification_blocker_->UpdateWindowOwners();

[Mr4D (OOO till 08-26), 2014/01/08 17:29:35]

At the moment we have only this use case, but we might consider to add an
observer mechanism here. Please add a Todo(skuhne) here and below to replace
this accordingly.

[Jun Mukai, 2014/01/08 20:41:24]

Done.

+
   if (!IsWindowOnDesktopOfUser(window, current_user_id_))
     SetWindowVisibility(window, false);
 }
@@ -294,6 +300,8 @@ void MultiUserWindowManagerChromeOS::ShowWindowForUser(
   } else {
     SetWindowVisibility(window, false);
   }
+
+  notification_blocker_->UpdateWindowOwners();

[Mr4D (OOO till 08-26), 2014/01/08 17:29:35]

See above

[Jun Mukai, 2014/01/08 20:41:24]

Done.

 }
 
 bool MultiUserWindowManagerChromeOS::AreWindowsSharedAmongUsers() {
@@ -405,6 +413,10 @@ void MultiUserWindowManagerChromeOS::ActiveUserChanged(
         client->ActivateWindow(window);
     }
   }
+
+  // This is called directly here to make sure notification_blocker will see the
+  // new window status.
+  notification_blocker_->ActiveUserChanged(user_id);
 }
 
 void MultiUserWindowManagerChromeOS::OnWindowDestroyed(aura::Window* window) {
@@ -419,6 +431,7 @@ void MultiUserWindowManagerChromeOS::OnWindowDestroyed(aura::Window* window) {
   // Remove the window from the owners list.
   delete window_to_entry_[window];
   window_to_entry_.erase(window);
+  notification_blocker_->UpdateWindowOwners();

[Mr4D (OOO till 08-26), 2014/01/08 17:29:35]

And again.

[Jun Mukai, 2014/01/08 20:41:24]

Done.

 }
 
 void MultiUserWindowManagerChromeOS::OnWindowVisibilityChanging(