Replace StyleRange with BreakList; update RenderText, etc.

ui/gfx/render_text_mac.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_MAC_H_
 #define UI_GFX_RENDER_TEXT_MAC_H_
 
 #include <ApplicationServices/ApplicationServices.h>
 
 #include <string>
@@ skipping 43 matching lines @@
   struct TextRun {
     CTRunRef ct_run;
     SkPoint origin;
     std::vector<uint16> glyphs;
     std::vector<SkPoint> glyph_positions;
     SkScalar width;
     std::string font_name;
     int font_style;
     SkScalar text_size;
     SkColor foreground;
-    StyleRange style;
+    bool underline;
+    bool strike;
+    bool diagonal_strike;
 
     TextRun();
     ~TextRun();
   };
 
   // Applies RenderText styles to |attr_string| with the given |ct_font|.
   void ApplyStyles(CFMutableAttributedStringRef attr_string, CTFontRef ct_font);
 
   // Updates |runs_| based on |line_| and sets |runs_valid_| to true.
   void ComputeRuns();
@@ skipping 17 matching lines @@
 
   // Indicates that |runs_| are valid, set by |ComputeRuns()|.
   bool runs_valid_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderTextMac);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_RENDER_TEXT_MAC_H_