More old files deletion.

ui/gfx/font_fallback_linux.cc

-// Copyright 2014 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_fallback.h"
-
-#include <fontconfig/fontconfig.h>
-
-#include <map>
-#include <string>
-#include <vector>
-
-#include "base/lazy_instance.h"
-
-namespace gfx {
-
-namespace {
-
-typedef std::map<std::string, std::vector<std::string> > FallbackCache;
-base::LazyInstance<FallbackCache>::Leaky g_fallback_cache =
-    LAZY_INSTANCE_INITIALIZER;
-
-}  // namespace
-
-std::vector<std::string> GetFallbackFontFamilies(
-    const std::string& font_family) {
-  std::vector<std::string>* fallback_fonts =
-      &g_fallback_cache.Get()[font_family];
-  if (!fallback_fonts->empty())
-    return *fallback_fonts;
-
-  FcPattern* pattern = FcPatternCreate();
-  FcValue family;
-  family.type = FcTypeString;
-  family.u.s = reinterpret_cast<const FcChar8*>(font_family.c_str());
-  FcPatternAdd(pattern, FC_FAMILY, family, FcFalse);
-  if (FcConfigSubstitute(NULL, pattern, FcMatchPattern) == FcTrue) {
-    FcDefaultSubstitute(pattern);
-    FcResult result;
-    FcFontSet* fonts = FcFontSort(NULL, pattern, FcTrue, NULL, &result);
-    if (fonts) {
-      for (int i = 0; i < fonts->nfont; ++i) {
-        char* name = NULL;
-        FcPatternGetString(fonts->fonts[i], FC_FAMILY, 0,
-            reinterpret_cast<FcChar8**>(&name));
-        // FontConfig returns multiple fonts with the same family name and
-        // different configurations. Check to prevent duplicate family names.
-        if (fallback_fonts->empty() || fallback_fonts->back() != name)
-          fallback_fonts->push_back(std::string(name));
-      }
-      FcFontSetDestroy(fonts);
-    }
-  }
-  FcPatternDestroy(pattern);
-
-  if (fallback_fonts->empty())
-    fallback_fonts->push_back(font_family);
-
-  return *fallback_fonts;
-}
-
-}  // namespace gfx