Disable RTHB on Mac when TOOLKIT_VIEWS isn't defined

ui/gfx/render_text.cc

Index: ui/gfx/render_text.cc
diff --git a/ui/gfx/render_text.cc b/ui/gfx/render_text.cc
index 1ca874a0e461f2014c5568c4fcfeb0802bba7fcc..6f6ce27eb008203bacf18b692e5e796d9fa988a4 100644
--- a/ui/gfx/render_text.cc
+++ b/ui/gfx/render_text.cc
@@ -398,9 +398,13 @@ RenderText::~RenderText() {
 }
 
 RenderText* RenderText::CreateInstance() {
+#if defined(OS_MACOSX) && !defined(TOOLKIT_VIEWS)
+  return CreateNativeInstance();

[msw, 2014/11/12 18:55:21]

Allow HarfBuzz with switches::kEnableHarfBuzzRenderText for testing.

[ckocagil, 2014/11/12 19:23:01]

Done.

+#else
   return CommandLine::ForCurrentProcess()->HasSwitch(

[msw, 2014/11/12 18:55:21]

optional nit: cache the command line value in a static local bool.
  static const bool use_harfbuzz = !CommandLine::ForCurrentProcess()->
      HasSwitch(switches::kDisableHarfBuzzRenderText);
  return use_harfbuzz ? new RenderTextHarfBuzz() : CreateNativeInstance();

[ckocagil, 2014/11/12 19:23:01]

Done.

       switches::kDisableHarfBuzzRenderText) ? CreateNativeInstance() :
       new RenderTextHarfBuzz;
+#endif
 }
 
 void RenderText::SetText(const base::string16& text) {