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 6617e497f0542a412394352efdc21d68809675e9..441911f9c9d1cbb7b6859845fef11e611deacac3 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"
@@ -25,6 +23,11 @@
 #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 {
@@ -234,6 +237,7 @@ TEST_F(ThemeServiceTest, ThemeUpgrade) {
                                           ExtensionRegistry::DISABLED));
 }
 
+#if defined(ENABLE_MANAGED_USERS)
 class ThemeServiceSupervisedUserTest : public ThemeServiceTest {
  public:
   ThemeServiceSupervisedUserTest() {}
@@ -270,6 +274,7 @@ TEST_F(ThemeServiceSupervisedUserTest, SupervisedUserThemeReplacesNativeTheme) {
   EXPECT_EQ(get_theme_supplier(theme_service)->get_theme_type(),
             CustomThemeSupplier::SUPERVISED_USER_THEME);
 }
-#endif
+#endif // defined(OS_LINUX) && !defined(OS_CHROMEOS)
+#endif // defined(ENABLE_MANAGED_USERS)
 
 }; // namespace theme_service_internal