Make it possible to build without enable_supervised_users.

chrome/test/base/testing_profile.cc

Index: chrome/test/base/testing_profile.cc
diff --git a/chrome/test/base/testing_profile.cc b/chrome/test/base/testing_profile.cc
index f67cb42419726a1f737fb6b8d364ddf36fd2d2bf..a424fb3e4ddabc2c57ca1395f4f096e70ebb95f9 100644
--- a/chrome/test/base/testing_profile.cc
+++ b/chrome/test/base/testing_profile.cc
@@ -467,14 +467,17 @@ void TestingProfile::Init() {
   }
 #endif
 
-  if (prefs_.get())
+  if (prefs_.get()) {
     user_prefs::UserPrefs::Set(this, prefs_.get());
-  else if (IsOffTheRecord())
+  } else if (IsOffTheRecord()) {
     CreateIncognitoPrefService();
-  else if (!supervised_user_id_.empty())
+  } else if (!supervised_user_id_.empty()) {
+#if BUILDFLAG(ENABLE_SUPERVISED_USERS)
     CreatePrefServiceForSupervisedUser();
-  else
+#endif
+  } else {
     CreateTestingPrefService();
+  }
 
   if (!base::PathExists(profile_path_))
     base::CreateDirectory(profile_path_);
@@ -803,6 +806,7 @@ void TestingProfile::CreateTestingPrefService() {
   chrome::RegisterUserProfilePrefs(testing_prefs_->registry());
 }
 
+#if BUILDFLAG(ENABLE_SUPERVISED_USERS)
 void TestingProfile::CreatePrefServiceForSupervisedUser() {
   DCHECK(!prefs_.get());
   DCHECK(!supervised_user_id_.empty());
@@ -821,6 +825,7 @@ void TestingProfile::CreatePrefServiceForSupervisedUser() {
   chrome::RegisterUserProfilePrefs(registry.get());
   user_prefs::UserPrefs::Set(this, prefs_.get());
 }
+#endif
 
 void TestingProfile::CreateIncognitoPrefService() {
   DCHECK(original_profile_);