Font size in DomDistiller prefs syncs with local scaling

components/dom_distiller/core/viewer.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 "components/dom_distiller/core/viewer.h"
 
 #include <string>
 #include <vector>
 
 #include "base/json/json_writer.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram_macros.h"
+#include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "components/dom_distiller/core/distilled_page_prefs.h"
 #include "components/dom_distiller/core/dom_distiller_service.h"
 #include "components/dom_distiller/core/proto/distilled_article.pb.h"
 #include "components/dom_distiller/core/proto/distilled_page.pb.h"
 #include "components/dom_distiller/core/task_tracker.h"
 #include "components/dom_distiller/core/url_constants.h"
 #include "components/dom_distiller/core/url_utils.h"
 #include "grit/components_resources.h"
 #include "grit/components_strings.h"
@@ skipping 268 matching lines @@
 
 const std::string GetDistilledPageThemeJs(DistilledPagePrefs::Theme theme) {
   return "useTheme('" + GetJsTheme(theme) + "');";
 }
 
 const std::string GetDistilledPageFontFamilyJs(
     DistilledPagePrefs::FontFamily font_family) {
   return "useFontFamily('" + GetJsFontFamily(font_family) + "');";
 }
 
+const std::string GetDistilledPageFontScalingJs(float scaling) {
+  return "useFontScaling(" + base::DoubleToString(scaling) + ");";
+}
+
 }  // namespace viewer
 
 }  // namespace dom_distiller