Font size in DomDistiller prefs syncs with local scaling

components/dom_distiller/core/viewer.h

Index: components/dom_distiller/core/viewer.h
diff --git a/components/dom_distiller/core/viewer.h b/components/dom_distiller/core/viewer.h
index 9b05daad5a610978f16a24be5bf214932b94f939..277a7a10c9e13956a4e999a995991211890755b3 100644
--- a/components/dom_distiller/core/viewer.h
+++ b/components/dom_distiller/core/viewer.h
@@ -83,13 +83,16 @@ scoped_ptr<ViewerHandle> CreateViewRequest(
     ViewRequestDelegate* view_request_delegate,
     const gfx::Size& render_view_size);
 
-// Returns JavaScript coresponding to setting the font family.
+// Returns JavaScript corresponding to setting the font family.
 const std::string GetDistilledPageFontFamilyJs(
     DistilledPagePrefs::FontFamily font);
 
 // Returns JavaScript corresponding to setting a specific theme.
 const std::string GetDistilledPageThemeJs(DistilledPagePrefs::Theme theme);
 
+// Returns JavaScript corresponding to setting the font scaling.
+const std::string GetDistilledPageFontScalingJs(float scaling);
+
 }  // namespace viewer
 
 }  // namespace dom_distiller