ScreenContext is moved to components/login.

components/login/base_screen_handler_utils.cc

Index: components/login/base_screen_handler_utils.cc
diff --git a/chrome/browser/ui/webui/chromeos/login/base_screen_handler_utils.cc b/components/login/base_screen_handler_utils.cc
similarity index 94%
rename from chrome/browser/ui/webui/chromeos/login/base_screen_handler_utils.cc
rename to components/login/base_screen_handler_utils.cc
index a0a9745e6bc67cec4e8694cd346e6ed0b26ffb3a..782c0643327c8306da94a879310fa6028b66133a 100644
--- a/chrome/browser/ui/webui/chromeos/login/base_screen_handler_utils.cc
+++ b/components/login/base_screen_handler_utils.cc
@@ -2,9 +2,9 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/ui/webui/chromeos/login/base_screen_handler_utils.h"
+#include "components/login/base_screen_handler_utils.h"
 
-namespace chromeos {
+namespace login {
 
 namespace {
 
@@ -83,4 +83,4 @@ void CallbackWrapper0(base::Callback<void()> callback,
   callback.Run();
 }
 
-}  // namespace chromeos
+}  // namespace login