Support 'mlogin' screen type for multi-profile login to onFocus event to IME extensions. This is th…

chrome/browser/extensions/api/input_ime/input_ime_api.cc

 // Copyright (c) 2012 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/extensions/api/input_ime/input_ime_api.h"
 
 #include "base/strings/string_number_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
+#include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
 #include "chrome/browser/chromeos/login/users/user_manager.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/common/extensions/api/input_ime.h"
 #include "chrome/common/extensions/api/input_ime/input_components_handler.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_function_registry.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/extension_system.h"
@@ skipping 128 matching lines @@
 
     // The component IME extensions need to know the current screen type (e.g.
     // lock screen, login screen, etc.) so that its on-screen keyboard page
     // won't open new windows/pages. See crbug.com/395621.
     base::DictionaryValue* val = NULL;
     if (args->GetDictionary(0, &val)) {
       std::string screen_type;
       if (!UserManager::Get()->IsUserLoggedIn()) {
         screen_type = "login";
       } else if (chromeos::ScreenLocker::default_screen_locker() &&
-               chromeos::ScreenLocker::default_screen_locker()->locked()) {
+                 chromeos::ScreenLocker::default_screen_locker()->locked()) {
         screen_type = "lock";
+      } else if (UserAddingScreen::Get()->IsRunning()) {
+        screen_type = "mlogin";

[Nikita (slow), 2014/07/25 14:28:57]

nit: secondary-login?

[Shu Chen, 2014/07/25 14:30:58]

Done.

       }
       if (!screen_type.empty())
         val->SetStringWithoutPathExpansion("screen", screen_type);
     }
 
     DispatchEventToExtension(profile_, extension_id_,
                              input_ime::OnFocus::kEventName, args.Pass());
   }
 
   virtual void OnBlur(int context_id) OVERRIDE {
@@ skipping 709 matching lines @@
       input_ime_event_router()->GetActiveEngine(details.extension_id);
   if (engine)
     engine->NotifyImeReady();
 }
 
 InputImeEventRouter* InputImeAPI::input_ime_event_router() {
   return InputImeEventRouter::GetInstance();
 }
 
 }  // namespace extensions