Move dirs from chrome/browser/chromeos/login/

app_mode/, auth/ and demo_mode/ are moved to chrome/browser/ash/login/.

This CL is part of the Chrome OS source code directory migration:
https://docs.google.com/document/d/1g-98HpzA8XcoGBWUv1gQNr4rbnD5yfvbtYZyPDDbkaE.

No-Presubmit: true
Bug: 1164001
Change-Id: I9b98777d8d45d8609d2d554c70b4493b8e3d7fac
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2712872
Commit-Queue: Henrique Ferreiro <[email protected]>
Owners-Override: Henrique Ferreiro <[email protected]>
Reviewed-by: Hidehiko Abe <[email protected]>
Cr-Commit-Position: refs/heads/master@{#857141}
diff --git a/chrome/browser/renderer_preferences_util.cc b/chrome/browser/renderer_preferences_util.cc
index 7c47c31..794160f 100644
--- a/chrome/browser/renderer_preferences_util.cc
+++ b/chrome/browser/renderer_preferences_util.cc
@@ -13,7 +13,7 @@
 #include "build/chromeos_buildflags.h"
 #include "chrome/browser/browser_process.h"
 #if BUILDFLAG(IS_CHROMEOS_ASH)
-#include "chrome/browser/chromeos/login/demo_mode/demo_session.h"
+#include "chrome/browser/ash/login/demo_mode/demo_session.h"
 #endif
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/profiles/profile_manager.h"