Minimized windows should not be activated by another user in multiprofile scenario.

ash/wm/ash_focus_rules.cc

Index: ash/wm/ash_focus_rules.cc
diff --git a/ash/wm/ash_focus_rules.cc b/ash/wm/ash_focus_rules.cc
index 66fe0b22b1af60d8899462307f8b8c7d51f10508..d8ecd17f992bce90ff4d05fa8ef906e0fe0f248a 100644
--- a/ash/wm/ash_focus_rules.cc
+++ b/ash/wm/ash_focus_rules.cc
@@ -4,10 +4,13 @@
 
 #include "ash/wm/ash_focus_rules.h"
 
+#include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "ash/wm/mru_window_tracker.h"
 #include "ash/wm/window_state.h"
+#include "components/user_manager/user.h"
+#include "components/user_manager/user_manager.h"
 #include "ui/aura/window.h"
 
 namespace ash {
@@ -84,6 +87,25 @@ bool AshFocusRules::SupportsChildActivation(aura::Window* window) const {
 
 bool AshFocusRules::IsWindowConsideredVisibleForActivation(
     aura::Window* window) const {
+  // If the |window| doesn't belong to the current active user and also doesn't
+  // show for the current active user, then it should not be activated.
+  SessionStateDelegate* delegate =
+      Shell::GetInstance()->session_state_delegate();
+  if (delegate->NumberOfLoggedInUsers() > 1) {
+    const user_manager::UserManager* user_manager =
+        user_manager::UserManager::Get();
+    const user_manager::User* active_user =
+        user_manager ? user_manager->GetActiveUser() : NULL;

[oshima, 2015/04/07 19:53:44]

Can you use GetActiveBrowserContext and  GetUserInfo instead?

[xdai1, 2015/04/09 17:22:40]

Done.

+
+    content::BrowserContext* browser_context =
+        delegate->GetBrowserContextForWindow(window);
+    if ((browser_context &&
+         delegate->GetUserInfo(browser_context) != active_user) &&
+        (active_user &&
+         delegate->GetUserPresentingWindow(window) != active_user->GetUserID()))
+      return false;
+  }
+
   if (BaseFocusRules::IsWindowConsideredVisibleForActivation(window))
     return true;