Remove obsolete for_web_contents parameter in FontRenderParamsQuery.

ui/gfx/font_render_params.h

Index: ui/gfx/font_render_params.h
diff --git a/ui/gfx/font_render_params.h b/ui/gfx/font_render_params.h
index 0bf10d468382232709bb5442894d217e57484b44..ed4e593305696d847657e766dded8d2ec076487c 100644
--- a/ui/gfx/font_render_params.h
+++ b/ui/gfx/font_render_params.h
@@ -67,18 +67,13 @@ struct GFX_EXPORT FontRenderParams {
 
 // A query used to determine the appropriate FontRenderParams.
 struct GFX_EXPORT FontRenderParamsQuery {
-  explicit FontRenderParamsQuery(bool for_web_contents);
+  FontRenderParamsQuery();
   ~FontRenderParamsQuery();
 
   bool is_empty() const {
     return families.empty() && pixel_size <= 0 && point_size <= 0 && style < 0;
   }
 
-  // True if rendering text for the web.
-  // TODO(derat): Remove this once FontRenderParams::subpixel_positioning is
-  // gone: http://crbug.com/396659
-  bool for_web_contents;
-
   // Requested font families, or empty if unset.
   std::vector<std::string> families;