Fix build when ENABLE_MANAGED_USERS is not defined

chrome/browser/themes/theme_service_unittest.cc

Index: chrome/browser/themes/theme_service_unittest.cc
diff --git a/chrome/browser/themes/theme_service_unittest.cc b/chrome/browser/themes/theme_service_unittest.cc
index 85bf1260b3236345297a2132d27a868d8e301b14..c0627c8d820e4729b8e45dc8aa5d701484d23a63 100644
--- a/chrome/browser/themes/theme_service_unittest.cc
+++ b/chrome/browser/themes/theme_service_unittest.cc
@@ -10,8 +10,6 @@
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_service_test_base.h"
 #include "chrome/browser/extensions/unpacked_installer.h"
-#include "chrome/browser/supervised_user/supervised_user_service.h"
-#include "chrome/browser/supervised_user/supervised_user_service_factory.h"
 #include "chrome/browser/themes/custom_theme_supplier.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/common/chrome_paths.h"
@@ -24,6 +22,11 @@
 #include "extensions/common/extension.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+#if defined(ENABLE_MANAGED_USERS)
+#include "chrome/browser/supervised_user/supervised_user_service.h"
+#include "chrome/browser/supervised_user/supervised_user_service_factory.h"
+#endif
+
 using extensions::ExtensionRegistry;
 
 namespace theme_service_internal {
@@ -230,6 +233,7 @@ TEST_F(ThemeServiceTest, ThemeUpgrade) {
                                           ExtensionRegistry::DISABLED));
 }
 
+#if defined(ENABLE_MANAGED_USERS)
 class ThemeServiceSupervisedUserTest : public ThemeServiceTest {
  public:
   ThemeServiceSupervisedUserTest() {}
@@ -267,5 +271,6 @@ TEST_F(ThemeServiceSupervisedUserTest, SupervisedUserThemeReplacesNativeTheme) {
             CustomThemeSupplier::SUPERVISED_USER_THEME);
 }
 #endif
+#endif
 
 }; // namespace theme_service_internal