[LayoutNG] Add NG-specific DrawText support to GraphicsContext

third_party/WebKit/Source/platform/fonts/Font.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2006, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (c) 2007, 2008, 2010 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 228 matching lines @@
     return;
 
   ShapeResultBloberizer bloberizer(*this, device_scale_factor);
   CachingWordShaper word_shaper(*this);
   ShapeResultBuffer buffer;
   word_shaper.FillResultBuffer(run_info, &buffer);
   bloberizer.FillTextEmphasisGlyphs(run_info, emphasis_glyph_data, buffer);
   DrawBlobs(canvas, flags, bloberizer.Blobs(), point);
 }
 
+void Font::DrawEmphasisMarks(PaintCanvas* canvas,
+                             const TextFragmentPaintInfo& text_info,
+                             const AtomicString& mark,
+                             const FloatPoint& point,
+                             float device_scale_factor,
+                             const PaintFlags& flags) const {
+  if (ShouldSkipDrawing())
+    return;
+
+  FontCachePurgePreventer purge_preventer;
+  const auto emphasis_glyph_data = GetEmphasisMarkGlyphData(mark);
+  if (!emphasis_glyph_data.font_data)
+    return;
+
+  ShapeResultBloberizer bloberizer(*this, device_scale_factor);
+  bloberizer.FillTextEmphasisGlyphs(
+      text_info.text, text_info.direction, text_info.from, text_info.to,
+      emphasis_glyph_data, text_info.shape_result);
+  DrawBlobs(canvas, flags, bloberizer.Blobs(), point);
+}
+
 float Font::Width(const TextRun& run,
                   HashSet<const SimpleFontData*>* fallback_fonts,
                   FloatRect* glyph_bounds) const {
   FontCachePurgePreventer purge_preventer;
   CachingWordShaper shaper(*this);
   return shaper.Width(run, fallback_fonts, glyph_bounds);
 }
 
 static int GetInterceptsFromBlobs(
     const ShapeResultBloberizer::BlobBuffer& blobs,
@@ skipping 189 matching lines @@
 
 bool Font::LoadingCustomFonts() const {
   return font_fallback_list_ && font_fallback_list_->LoadingCustomFonts();
 }
 
 bool Font::IsFallbackValid() const {
   return !font_fallback_list_ || font_fallback_list_->IsValid();
 }
 
 }  // namespace blink