Disable RTHB on Mac when TOOLKIT_VIEWS isn't defined

ui/gfx/render_text_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gfx/render_text.h"
 
 #include <algorithm>
 
 #include "base/format_macros.h"
 #include "base/i18n/break_iterator.h"
@@ skipping 2314 matching lines @@
   render_text->SetDisplayRect(Rect(0, 0, 500, 100));
   EXPECT_EQ(kString, render_text->GetLayoutText());
   render_text->SetDisplayRect(Rect(0, 0, render_text->GetContentWidth(), 100));
   EXPECT_EQ(kString, render_text->GetLayoutText());
 }
 
 // TODO(derat): Figure out why this fails on Windows: http://crbug.com/427184
 #if !defined(OS_WIN)
 // Ensure that RenderText examines all of the fonts in its FontList before
 // falling back to other fonts.
-TEST_F(RenderTextTest, FontListFallback) {
+TEST_F(RenderTextTest, HarfBuzz_FontListFallback) {
   // Double-check that the requested fonts are present.
   FontList font_list("Arial, Symbol, 12px");
   const std::vector<Font>& fonts = font_list.GetFonts();
   ASSERT_EQ(2u, fonts.size());
   ASSERT_EQ("arial",
             base::StringToLowerASCII(fonts[0].GetActualFontNameForTesting()));
   ASSERT_EQ("symbol",
             base::StringToLowerASCII(fonts[1].GetActualFontNameForTesting()));
 
   // "⊕" (CIRCLED PLUS) should be rendered with Symbol rather than falling back
   // to some other font that's present on the system.
-  scoped_ptr<RenderText> render_text(RenderText::CreateInstance());
-  render_text->SetFontList(font_list);
-  render_text->SetText(UTF8ToUTF16("\xE2\x8A\x95"));
+  RenderTextHarfBuzz render_text;
+  render_text.SetFontList(font_list);
+  render_text.SetText(UTF8ToUTF16("\xE2\x8A\x95"));
   const std::vector<RenderText::FontSpan> spans =
-      render_text->GetFontSpansForTesting();
+      render_text.GetFontSpansForTesting();
   ASSERT_EQ(static_cast<size_t>(1), spans.size());
   EXPECT_EQ("Symbol", spans[0].first.GetFontName());
 }
 #endif  // !defined(OS_WIN)
 
 // Ensure that the fallback fonts of the Uniscribe font are tried for shaping.
 #if defined(OS_WIN)
 TEST_F(RenderTextTest, HarfBuzz_UniscribeFallback) {
   RenderTextHarfBuzz render_text;
   PlatformFontWin* font_win = new PlatformFontWin("Meiryo", 12);
   // Japanese name for Meiryo. This name won't be found in the system's linked
   // fonts, forcing RTHB to try the Uniscribe font and its fallbacks.
   font_win->font_ref_->font_name_ = WideToUTF8(L"\x30e1\x30a4\x30ea\x30aa");
   FontList font_list((Font(font_win)));
 
   render_text.SetFontList(font_list);
   // Korean character "han".
   render_text.SetText(WideToUTF16(L"\xd55c"));
   render_text.EnsureLayout();
   ASSERT_EQ(1U, render_text.runs_.size());
   EXPECT_EQ(0U, render_text.runs_[0]->CountMissingGlyphs());
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace gfx