Clean up a few more unused globals.

ui/gfx/render_text_unittest.cc

Index: ui/gfx/render_text_unittest.cc
diff --git a/ui/gfx/render_text_unittest.cc b/ui/gfx/render_text_unittest.cc
index 52cb8344b3765da774b8090198084f77b9793485..d482407201ab763f3077494189bb87d7faea0c96 100644
--- a/ui/gfx/render_text_unittest.cc
+++ b/ui/gfx/render_text_unittest.cc
@@ -34,11 +34,13 @@ namespace {
 // Various weak, LTR, RTL, and Bidi string cases with three characters each.
 const wchar_t kWeak[] =      L" . ";
 const wchar_t kLtr[] =       L"abc";
+const wchar_t kRtl[] =       L"\x5d0\x5d1\x5d2";
+#if !defined(OS_MACOSX)
 const wchar_t kLtrRtl[] =    L"a" L"\x5d0\x5d1";
 const wchar_t kLtrRtlLtr[] = L"a" L"\x5d1" L"b";
-const wchar_t kRtl[] =       L"\x5d0\x5d1\x5d2";
 const wchar_t kRtlLtr[] =    L"\x5d0\x5d1" L"a";
 const wchar_t kRtlLtrRtl[] = L"\x5d0" L"a" L"\x5d1";
+#endif
 
 // Checks whether |range| contains |index|. This is not the same as calling
 // |range.Contains(gfx::Range(index))| - as that would return true when