Rework gfx::Font by moving platform-specific code into inner classes....

chrome/browser/gtk/options/fonts_page_gtk.cc

Index: chrome/browser/gtk/options/fonts_page_gtk.cc
===================================================================
--- chrome/browser/gtk/options/fonts_page_gtk.cc	(revision 55911)
+++ chrome/browser/gtk/options/fonts_page_gtk.cc	(working copy)
@@ -22,8 +22,8 @@
   // The given font might not be available (the default fonts we use are not
   // installed by default on some distros).  So figure out which font we are
   // actually falling back to and display that.  (See crbug.com/31381.)
-  std::wstring actual_family_name = gfx::Font::CreateFont(
-      UTF8ToWide(family_name), pixel_size).FontName();
+  std::wstring actual_family_name = gfx::Font(
+      UTF8ToWide(family_name), pixel_size).GetFontName();
   std::string fontname;
   // TODO(mattm): We can pass in the size in pixels (px), and the font button
   // actually honors it, but when you open the selector it interprets it as