cc: remove FontAtlas

cc/font_atlas.h

-// Copyright 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 CC_FONT_ATLAS_H_
-#define CC_FONT_ATLAS_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "cc/cc_export.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/gfx/rect.h"
-
-class SkCanvas;
-
-namespace gfx {
-class Point;
-class Size;
-}
-
-namespace cc {
-
-// This class provides basic ability to draw text onto the heads-up display.
-class CC_EXPORT FontAtlas {
-public:
-    static scoped_ptr<FontAtlas> create(SkBitmap bitmap, gfx::Rect asciiToRectTable[128], int fontHeight)
-    {
-        return make_scoped_ptr(new FontAtlas(bitmap, asciiToRectTable, fontHeight));
-    }
-    ~FontAtlas();
-
-    // Current font height.
-    int fontHeight() const { return m_fontHeight; }
-
-    // Draws multiple lines of text where each line of text is separated by '\n'.
-    // - Correct glyphs will be drawn for ASCII codes in the range 32-127; any characters
-    //   outside that range will be displayed as a default rectangle glyph.
-    // - gfx::Size clip is used to avoid wasting time drawing things that are outside the
-    //   target canvas bounds.
-    // - Should only be called on the impl thread.
-    void drawText(SkCanvas*, SkPaint*, const std::string& text, const gfx::Point& destPosition, const gfx::Size& clip) const;
-
-    // Gives a text's width and height on the canvas.
-    gfx::Size textSize(const std::string& text);
-
-    // Sets the text's color.
-    void setColor(const SkColor& color) { m_color = color; }
-
-    // Draws the entire atlas at the specified position, just for debugging purposes.
-    void drawDebugAtlas(SkCanvas*, const gfx::Point& destPosition) const;
-
-private:
-    FontAtlas(SkBitmap, gfx::Rect asciiToRectTable[128], int fontHeight);
-
-    void drawOneLineOfTextInternal(SkCanvas*, const SkPaint&, const std::string&, const gfx::Point& destPosition) const;
-
-    // The actual texture atlas containing all the pre-rendered glyphs.
-    SkBitmap m_atlas;
-
-    // The look-up tables mapping ascii characters to their gfx::Rect locations on the atlas.
-    gfx::Rect m_asciiToRectTable[128];
-
-    int m_fontHeight;
-    SkColor m_color;
-
-    DISALLOW_COPY_AND_ASSIGN(FontAtlas);
-};
-
-}  // namespace cc
-
-#endif  // CC_FONT_ATLAS_H_