Support FontRenderParams on Win; fix RenderTextHarfBuzz.

ui/gfx/render_text.h

 // Copyright (c) 2012 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.
 
 #ifndef UI_GFX_RENDER_TEXT_H_
 #define UI_GFX_RENDER_TEXT_H_
 
 #include <algorithm>
 #include <cstring>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/gtest_prod_util.h"
 #include "base/i18n/rtl.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "skia/ext/refptr.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "third_party/skia/include/core/SkPaint.h"
 #include "third_party/skia/include/core/SkRect.h"
 #include "ui/gfx/break_list.h"
 #include "ui/gfx/font_list.h"
+#include "ui/gfx/font_render_params.h"
 #include "ui/gfx/point.h"
 #include "ui/gfx/range/range.h"
 #include "ui/gfx/rect.h"
 #include "ui/gfx/selection_model.h"
 #include "ui/gfx/shadow_value.h"
 #include "ui/gfx/size_f.h"
 #include "ui/gfx/text_constants.h"
 #include "ui/gfx/text_elider.h"
 #include "ui/gfx/vector2d.h"
 
@@ skipping 11 matching lines @@
 
 namespace internal {
 
 // Internal helper class used by derived classes to draw text through Skia.
 class SkiaTextRenderer {
  public:
   explicit SkiaTextRenderer(Canvas* canvas);
   ~SkiaTextRenderer();
 
   void SetDrawLooper(SkDrawLooper* draw_looper);
-  void SetFontSmoothingSettings(bool antialiasing,
-                                bool subpixel_rendering,
-                                bool subpixel_positioning);
+  void SetFontRenderParams(const FontRenderParams& params,
+                           bool background_is_transparent);
   void SetFontHinting(SkPaint::Hinting hinting);
   void SetTypeface(SkTypeface* typeface);
   void SetTextSize(SkScalar size);
   void SetFontFamilyWithStyle(const std::string& family, int font_style);
   void SetForegroundColor(SkColor foreground);
   void SetShader(SkShader* shader, const Rect& bounds);
   // Sets underline metrics to use if the text will be drawn with an underline.
   // If not set, default values based on the size of the text will be used. The
   // two metrics must be set together.
   void SetUnderlineMetrics(SkScalar thickness, SkScalar position);
@@ skipping 632 matching lines @@
   // Lines computed by EnsureLayout. These should be invalidated with
   // ResetLayout and on |display_rect_| changes.
   std::vector<internal::Line> lines_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderText);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_RENDER_TEXT_H_