Move screenlock_bridge to components/proximity_auth

chrome/browser/ui/webui/signin/user_manager_screen_handler.cc

Index: chrome/browser/ui/webui/signin/user_manager_screen_handler.cc
diff --git a/chrome/browser/ui/webui/signin/user_manager_screen_handler.cc b/chrome/browser/ui/webui/signin/user_manager_screen_handler.cc
index feddfc81a34970e70dc555e1958a80cb6c6bc460..f5be723dd4be79ee0443153dbd4472f787590a4e 100644
--- a/chrome/browser/ui/webui/signin/user_manager_screen_handler.cc
+++ b/chrome/browser/ui/webui/signin/user_manager_screen_handler.cc
@@ -35,6 +35,7 @@
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/chromium_strings.h"
 #include "chrome/grit/generated_resources.h"
+#include "components/signin/core/browser/signin_manager_base.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui.h"
@@ -359,6 +360,18 @@ UserManagerScreenHandler::GetScreenType() const {
   return ScreenlockBridge::LockHandler::LOCK_SCREEN;
 }
 
+void UserManagerScreenHandler::Lock(content::BrowserContext* browser_context) {
+  profiles::LockProfile(Profile::FromBrowserContext(browser_context));
+}
+
+void UserManagerScreenHandler::Unlock(
+    content::BrowserContext* browser_context) {
+  Profile* profile = Profile::FromBrowserContext(browser_context);
+  SigninManagerBase* signin_manager =
+      SigninManagerFactory::GetForProfile(profile);
+  Unlock(signin_manager->GetAuthenticatedUsername());
+}
+
 void UserManagerScreenHandler::Unlock(const std::string& user_email) {
   const ProfileInfoCache& info_cache =
       g_browser_process->profile_manager()->GetProfileInfoCache();