Replace StyleRange with BreakList; update RenderText, etc.

ui/gfx/render_text_linux.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_LINUX_H_
 #define UI_GFX_RENDER_TEXT_LINUX_H_
 
 #include <pango/pango.h>
 #include <vector>
 
@@ skipping 27 matching lines @@
                               int* height) OVERRIDE;
   virtual std::vector<Rect> GetSubstringBounds(const ui::Range& range) OVERRIDE;
   virtual size_t TextIndexToLayoutIndex(size_t index) const OVERRIDE;
   virtual size_t LayoutIndexToTextIndex(size_t index) const OVERRIDE;
   virtual bool IsCursorablePosition(size_t position) OVERRIDE;
   virtual void ResetLayout() OVERRIDE;
   virtual void EnsureLayout() OVERRIDE;
   virtual void DrawVisualText(Canvas* canvas) OVERRIDE;
 
  private:
+  friend class RenderTextTest;
+  FRIEND_TEST_ALL_PREFIXES(RenderTextTest, PangoAttributes);
+
   // Returns the run that contains the character attached to the caret in the
   // given selection model. Return NULL if not found.
   GSList* GetRunContainingCaret(const SelectionModel& caret) const;
 
   // Given a |run|, returns the SelectionModel that contains the logical first
   // or last caret position inside (not at a boundary of) the run.
   // The returned value represents a cursor/caret position without a selection.
   SelectionModel FirstSelectionModelInsideRun(const PangoItem* run);
   SelectionModel LastSelectionModelInsideRun(const PangoItem* run);
 
   // Setup pango attribute: foreground, background, font, strike.
   void SetupPangoAttributes(PangoLayout* layout);
 
   // Append one pango attribute |pango_attr| into pango attribute list |attrs|.
   void AppendPangoAttribute(size_t start,
                             size_t end,
                             PangoAttribute* pango_attr,
                             PangoAttrList* attrs);
 
   // Calculate the visual bounds containing the logical substring within the
   // given range.
   std::vector<Rect> CalculateSubstringBounds(ui::Range range);
 
   // Get the visual bounds of the logical selection.
   std::vector<Rect> GetSelectionBounds();
 
+  // Get the text index corresponding to the |run|'s |glyph_index|.
+  size_t GetGlyphTextIndex(PangoLayoutRun* run, int glyph_index) const;
+
   // Pango Layout.
   PangoLayout* layout_;
   // A single line layout resulting from laying out via |layout_|.
   PangoLayoutLine* current_line_;
 
   // Information about character attributes.
   PangoLogAttr* log_attrs_;
   // Number of attributes in |log_attrs_|.
   int num_log_attrs_;
 
   // Vector of the visual bounds containing the logical substring of selection.
   std::vector<Rect> selection_visual_bounds_;
 
   // The text in the |layout_|.
   const char* layout_text_;
   // The text length.
   size_t layout_text_len_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderTextLinux);
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_RENDER_TEXT_LINUX_H_