Enables font-related unittests again.

ui/gfx/font_unittest.cc

Index: ui/gfx/font_unittest.cc
diff --git a/ui/gfx/font_unittest.cc b/ui/gfx/font_unittest.cc
index 2fe61939d14bf6e9f7d8e60583a7b38a3e410c40..d3bd0d9811fc78010fbceeceee590069ebd6f650 100644
--- a/ui/gfx/font_unittest.cc
+++ b/ui/gfx/font_unittest.cc
@@ -5,6 +5,7 @@
 #include "ui/gfx/font.h"
 
 #include "base/strings/string16.h"
+#include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ -63,6 +64,7 @@ TEST_F(FontTest, LoadArial) {
   EXPECT_EQ(cf.GetStyle(), Font::NORMAL);
   EXPECT_EQ(cf.GetFontSize(), 16);
   EXPECT_EQ(cf.GetFontName(), "Arial");
+  EXPECT_EQ("arial", StringToLowerASCII(cf.GetActualFontName()));
   FreeIfNecessary(native);
 }
 
@@ -72,6 +74,7 @@ TEST_F(FontTest, LoadArialBold) {
   NativeFont native = bold.GetNativeFont();
   EXPECT_TRUE(native);
   EXPECT_EQ(bold.GetStyle(), Font::BOLD);
+  EXPECT_EQ("arial", StringToLowerASCII(cf.GetActualFontName()));
   FreeIfNecessary(native);
 }
 
@@ -123,6 +126,21 @@ TEST_F(FontTest, Widths) {
             cf.GetStringWidth(ASCIIToUTF16("ab")));
 }
 
+#if !defined(OS_WIN)
+// On Windows, Font::GetActualFontName() doesn't work well for now.

[msw, 2013/12/09 19:27:15]

nit: file an issue to follow up.

[Yuki, 2013/12/10 09:58:59]

Done.

+TEST_F(FontTest, GetActualFontName) {
+  Font arial("Arial", 16);
+  EXPECT_EQ("arial", StringToLowerASCII(arial.GetActualFontName()));
+  Font symbol("Symbol", 16);
+  EXPECT_EQ("symbol", StringToLowerASCII(symbol.GetActualFontName()));
+
+  const char* const invalid_font_name = "no_such_a_font_name";

[msw, 2013/12/09 19:27:15]

nit: consider "invalid_font_name" or "no_such_font_name"

[Yuki, 2013/12/10 09:58:59]

Done.

+  Font fallback_font(invalid_font_name, 16);
+  EXPECT_NE(invalid_font_name,
+            StringToLowerASCII(fallback_font.GetActualFontName()));
+}
+#endif
+
 #if defined(OS_WIN)
 TEST_F(FontTest, DeriveFontResizesIfSizeTooSmall) {
   Font cf("Arial", 8);