linux: Use scalable fonts and Fontconfig's bitmap setting.

ui/gfx/font_render_params_linux.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/font_render_params.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "ui/gfx/font.h"
 #include "ui/gfx/linux_font_delegate.h"
@@ skipping 31 matching lines @@
 // GetCustomFontRenderParams() for descriptions of arguments.
 bool QueryFontconfig(const std::vector<std::string>* family_list,
                      const int* pixel_size,
                      const int* point_size,
                      const int* style,
                      FontRenderParams* params_out,
                      std::string* family_out) {
   FcPattern* pattern = FcPatternCreate();
   CHECK(pattern);
 
+  FcPatternAddBool(pattern, FC_SCALABLE, FcTrue);
+
   if (family_list) {
     for (std::vector<std::string>::const_iterator it = family_list->begin();
          it != family_list->end(); ++it) {
       FcPatternAddString(
           pattern, FC_FAMILY, reinterpret_cast<const FcChar8*>(it->c_str()));
     }
   }
   if (pixel_size)
     FcPatternAddDouble(pattern, FC_PIXEL_SIZE, *pixel_size);
   if (point_size)
@@ skipping 22 matching lines @@
 
   if (params_out) {
     FcBool fc_antialias = 0;
     FcPatternGetBool(match, FC_ANTIALIAS, 0, &fc_antialias);
     params_out->antialiasing = fc_antialias;
 
     FcBool fc_autohint = 0;
     FcPatternGetBool(match, FC_AUTOHINT, 0, &fc_autohint);
     params_out->autohinter = fc_autohint;
 
+    FcBool fc_bitmap = 0;
+    FcPatternGetBool(match, FC_EMBEDDED_BITMAP, 0, &fc_bitmap);
+    params_out->use_bitmaps = fc_bitmap;
+
     FcBool fc_hinting = 0;
     int fc_hint_style = FC_HINT_NONE;
     FcPatternGetBool(match, FC_HINTING, 0, &fc_hinting);
     if (fc_hinting)
       FcPatternGetInteger(match, FC_HINT_STYLE, 0, &fc_hint_style);
     params_out->hinting = ConvertFontconfigHintStyle(fc_hint_style);
 
     int fc_rgba = FC_RGBA_NONE;
     FcPatternGetInteger(match, FC_RGBA, 0, &fc_rgba);
     params_out->subpixel_rendering = ConvertFontconfigRgba(fc_rgba);
@@ skipping 51 matching lines @@
 
   // Use the first family from the list if Fontconfig didn't suggest a family.
   if (family_out && family_out->empty() &&
       family_list && !family_list->empty())
     *family_out = (*family_list)[0];
 
   return params;
 }
 
 }  // namespace gfx