ui/gfx: Allow for font-specific rendering settings.

ui/gfx/platform_font_mac.mm

Index: ui/gfx/platform_font_mac.mm
diff --git a/ui/gfx/platform_font_mac.mm b/ui/gfx/platform_font_mac.mm
index 53e3013170cba2145ca693431bc17d1cc89562d3..4db4baddd82fbf6cc49635ab317a22d4928aeb56 100644
--- a/ui/gfx/platform_font_mac.mm
+++ b/ui/gfx/platform_font_mac.mm
@@ -12,6 +12,7 @@
 #include "base/strings/utf_string_conversions.h"
 #include "ui/gfx/canvas.h"
 #include "ui/gfx/font.h"
+#include "ui/gfx/font_render_params.h"
 
 namespace gfx {
 
@@ -125,6 +126,12 @@ int PlatformFontMac::GetFontSize() const {
   return font_size_;
 }
 
+const FontRenderParams& PlatformFontMac::GetFontRenderParams() const {
+  NOTIMPLEMENTED();
+  static FontRenderParams params;
+  return params;
+}
+
 NativeFont PlatformFontMac::GetNativeFont() const {
   return [[native_font_.get() retain] autorelease];
 }