Display on signin-internals the status of account consistency.

components/signin/core/browser/about_signin_internals.cc

Index: components/signin/core/browser/about_signin_internals.cc
diff --git a/components/signin/core/browser/about_signin_internals.cc b/components/signin/core/browser/about_signin_internals.cc
index 86b94e76414e447456871a52e748b8eb456b3699..d05f57cd0f27e70f7a5b8f7a3f30a54e76087ff0 100644
--- a/components/signin/core/browser/about_signin_internals.cc
+++ b/components/signin/core/browser/about_signin_internals.cc
@@ -362,6 +362,8 @@ scoped_ptr<base::DictionaryValue> AboutSigninInternals::SigninStatus::ToValue(
       CommandLine::ForCurrentProcess()->HasSwitch(switches::kNewAvatarMenu);
   AddSectionEntry(basic_info, "New Avatar Menu Flag Set?",
       new_avatar_menu_flag ? "True" : "False");
+  AddSectionEntry(basic_info, "Account Consistency Enabled?",
+      switches::IsEnableAccountConsistency() == true ? "True" : "False");
 
   // Only add username.  SID and LSID have moved to tokens section.
   const std::string field =