Delete RenderTextWin and RenderTextPango.

ui/gfx/render_text_pango.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_PANGO_H_
-#define UI_GFX_RENDER_TEXT_PANGO_H_
-
-#include <pango/pango.h>
-#include <vector>
-
-#include "ui/gfx/render_text.h"
-
-namespace gfx {
-
-// RenderTextPango is the Linux implementation of RenderText using Pango.
-class RenderTextPango : public RenderText {
- public:
-  RenderTextPango();
-  ~RenderTextPango() override;
-
-  // Overridden from RenderText:
-  scoped_ptr<RenderText> CreateInstanceOfSameType() const override;
-  Size GetStringSize() override;
-  SelectionModel FindCursorPosition(const Point& point) override;
-  std::vector<FontSpan> GetFontSpansForTesting() override;
-
- protected:
-  // Overridden from RenderText:
-  int GetLayoutTextBaseline() override;
-  SelectionModel AdjacentCharSelectionModel(
-      const SelectionModel& selection,
-      VisualCursorDirection direction) override;
-  SelectionModel AdjacentWordSelectionModel(
-      const SelectionModel& selection,
-      VisualCursorDirection direction) override;
-  Range GetGlyphBounds(size_t index) override;
-  std::vector<Rect> GetSubstringBounds(const Range& range) override;
-  size_t TextIndexToLayoutIndex(size_t index) const override;
-  size_t LayoutIndexToTextIndex(size_t index) const override;
-  bool IsValidCursorIndex(size_t index) override;
-  void ResetLayout() override;
-  void EnsureLayout() override;
-  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);
-
-  // 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_;
-
-  // The text in the |layout_|.
-  const char* layout_text_;
-
-  DISALLOW_COPY_AND_ASSIGN(RenderTextPango);
-};
-
-}  // namespace gfx
-
-#endif  // UI_GFX_RENDER_TEXT_PANGO_H_