Index: native_theme_aura.cc
===================================================================
--- native_theme_aura.cc	(revision 237081)
+++ native_theme_aura.cc	(working copy)
@@ -17,10 +17,12 @@
 
 namespace ui {
 
+#if !defined(OS_WIN)
 // static
 NativeTheme* NativeTheme::instance() {
   return NativeThemeAura::instance();
 }
+#endif
 
 // static
 NativeThemeAura* NativeThemeAura::instance() {
Index: native_theme_win.cc
===================================================================
--- native_theme_win.cc	(revision 237081)
+++ native_theme_win.cc	(working copy)
@@ -211,12 +211,10 @@
 // TODO(sky): seems like we should default to NativeThemeWin, but that currently
 // breaks a couple of tests (FocusTraversalTest.NormalTraversal in
 // views_unittests).
-#if !defined(USE_AURA)
 // static
 NativeTheme* NativeTheme::instance() {
   return NativeThemeWin::instance();
 }
-#endif
 
 // static
 NativeThemeWin* NativeThemeWin::instance() {