Adding Wayland support for ui/gfx

ui/gfx/platform_font_gtk.cc

Index: ui/gfx/platform_font_gtk.cc
diff --git a/ui/gfx/platform_font_gtk.cc b/ui/gfx/platform_font_gtk.cc
index 5ccc7c53b3b80ee3048432d138595847ffee0afe..c7555169969846a95569b91070faae4ebfd66c82 100644
--- a/ui/gfx/platform_font_gtk.cc
+++ b/ui/gfx/platform_font_gtk.cc
@@ -6,14 +6,17 @@
 
 #include <algorithm>
 #include <fontconfig/fontconfig.h>
+#if !defined(USE_WAYLAND)
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
+#endif
 #include <map>
 #include <pango/pango.h>
 
 #include "base/logging.h"
 #include "base/string_piece.h"
 #include "base/utf_string_conversions.h"
+#include "pango/pangocairo.h"
 #include "third_party/skia/include/core/SkTypeface.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "ui/gfx/canvas_skia.h"
@@ -56,7 +59,8 @@ PangoFontMetrics* GetPangoFontMetrics(PangoFontDescription* desc) {
   static PangoContext* context = NULL;
 
   if (!context) {
-    context = gdk_pango_context_get_for_screen(gdk_screen_get_default());
+    PangoFontMap *font_map = pango_cairo_font_map_get_default();
+    context = pango_font_map_create_context(font_map);
     pango_context_set_language(context, pango_language_get_default());
   }
 
@@ -120,6 +124,9 @@ Font* PlatformFontGtk::default_font_ = NULL;
 
 PlatformFontGtk::PlatformFontGtk() {
   if (default_font_ == NULL) {
+#if defined(USE_WAYLAND)
+    char font_name[] = "sans 10";
+#else
     GtkSettings* settings = gtk_settings_get_default();
 
     gchar* font_name = NULL;
@@ -128,12 +135,16 @@ PlatformFontGtk::PlatformFontGtk() {
     // Temporary CHECK for helping track down
     // http://code.google.com/p/chromium/issues/detail?id=12530
     CHECK(font_name) << " Unable to get gtk-font-name for default font.";
+#endif
 
     PangoFontDescription* desc =
         pango_font_description_from_string(font_name);
     default_font_ = new Font(desc);
     pango_font_description_free(desc);
+
+#if !defined(USE_WAYLAND)
     g_free(font_name);
+#endif
 
     DCHECK(default_font_);
   }