favor DCHECK_CURRENTLY_ON for better logs in chrome/browser/chromeos/

chrome/browser/chromeos/login/users/supervised_user_manager_impl.cc

Index: chrome/browser/chromeos/login/users/supervised_user_manager_impl.cc
diff --git a/chrome/browser/chromeos/login/users/supervised_user_manager_impl.cc b/chrome/browser/chromeos/login/users/supervised_user_manager_impl.cc
index 9c5ca41aa2e21a2156e846cb72a16e411157276c..9339c1fde4d9d2bd9d49f39663236b4f73f6324c 100644
--- a/chrome/browser/chromeos/login/users/supervised_user_manager_impl.cc
+++ b/chrome/browser/chromeos/login/users/supervised_user_manager_impl.cc
@@ -133,7 +133,7 @@ SupervisedUserManagerImpl::SupervisedUserManagerImpl(
     ChromeUserManagerImpl* owner)
     : owner_(owner), cros_settings_(CrosSettings::Get()) {
   // SupervisedUserManager instance should be used only on UI thread.
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   authentication_.reset(new SupervisedUserAuthentication(this));
 }
 
@@ -357,7 +357,7 @@ void SupervisedUserManagerImpl::SetUserBooleanValue(const std::string& user_id,
 
 const user_manager::User* SupervisedUserManagerImpl::FindByDisplayName(
     const base::string16& display_name) const {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   const user_manager::UserList& users = owner_->GetUsers();
   for (user_manager::UserList::const_iterator it = users.begin();
        it != users.end();
@@ -372,7 +372,7 @@ const user_manager::User* SupervisedUserManagerImpl::FindByDisplayName(
 
 const user_manager::User* SupervisedUserManagerImpl::FindBySyncId(
     const std::string& sync_id) const {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK_CURRENTLY_ON(BrowserThread::UI);
   const user_manager::UserList& users = owner_->GetUsers();
   for (user_manager::UserList::const_iterator it = users.begin();
        it != users.end();