Updates subpixel positioning and hinting when DSF is changed

ui/gfx/platform_font_pango.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/platform_font_pango.h"
 
 #include <pango/pango.h>
 
 #include <algorithm>
 #include <string>
@@ skipping 95 matching lines @@
 
   query.style = gfx::Font::NORMAL;
   // TODO(davemoore): Support weights other than bold?
   if (pango_font_description_get_weight(native_font) == PANGO_WEIGHT_BOLD)
     query.style |= gfx::Font::BOLD;
   // TODO(davemoore): What about PANGO_STYLE_OBLIQUE?
   if (pango_font_description_get_style(native_font) == PANGO_STYLE_ITALIC)
     query.style |= gfx::Font::ITALIC;
 
   std::string font_family;
-  const FontRenderParams params = gfx::GetFontRenderParams(query, &font_family);
+  const FontRenderParams params =
+      gfx::GetSystemFontRenderParams(query, &font_family);
   InitFromDetails(skia::RefPtr<SkTypeface>(), font_family,
                   gfx::GetPangoFontSizeInPixels(native_font),
                   query.style, params);
 }
 
 PlatformFontPango::PlatformFontPango(const std::string& font_name,
                                      int font_size_pixels) {
   FontRenderParamsQuery query(false);
   query.families.push_back(font_name);
   query.pixel_size = font_size_pixels;
   query.style = gfx::Font::NORMAL;
   InitFromDetails(skia::RefPtr<SkTypeface>(), font_name, font_size_pixels,
-                  query.style, gfx::GetFontRenderParams(query, NULL));
+                  query.style, gfx::GetSystemFontRenderParams(query, NULL));
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // PlatformFontPango, PlatformFont implementation:
 
 // static
 void PlatformFontPango::ReloadDefaultFont() {
   delete default_font_;
   default_font_ = NULL;
 }
@@ skipping 15 matching lines @@
   // If the style changed, we may need to load a new face.
   std::string new_family = font_family_;
   skia::RefPtr<SkTypeface> typeface =
       (style == style_) ? typeface_ : CreateSkTypeface(style, &new_family);
 
   FontRenderParamsQuery query(false);
   query.families.push_back(new_family);
   query.pixel_size = new_size;
   query.style = style;
 
-  return Font(new PlatformFontPango(typeface, new_family, new_size, style,
-                                    gfx::GetFontRenderParams(query, NULL)));
+  return Font(
+      new PlatformFontPango(typeface, new_family, new_size, style,
+                            gfx::GetSystemFontRenderParams(query, NULL)));
 }
 
 int PlatformFontPango::GetHeight() const {
   return height_pixels_;
 }
 
 int PlatformFontPango::GetBaseline() const {
   return ascent_pixels_;
 }
 
@@ skipping 160 matching lines @@
   return new PlatformFontPango(native_font);
 }
 
 // static
 PlatformFont* PlatformFont::CreateFromNameAndSize(const std::string& font_name,
                                                   int font_size) {
   return new PlatformFontPango(font_name, font_size);
 }
 
 }  // namespace gfx