Moving GraphicsContext and dependencies from core to platform.

Source/core/platform/graphics/harfbuzz/HarfBuzzShaper.h

Index: Source/core/platform/graphics/harfbuzz/HarfBuzzShaper.h
diff --git a/Source/core/platform/graphics/harfbuzz/HarfBuzzShaper.h b/Source/core/platform/graphics/harfbuzz/HarfBuzzShaper.h
deleted file mode 100644
index 05323a17c37c26d7dd0811d96f17995c6e1a1be9..0000000000000000000000000000000000000000
--- a/Source/core/platform/graphics/harfbuzz/HarfBuzzShaper.h
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- * Copyright (C) 2012 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef HarfBuzzShaper_h
-#define HarfBuzzShaper_h
-
-#include "hb.h"
-#include "platform/fonts/GlyphBuffer.h"
-#include "platform/geometry/FloatPoint.h"
-#include "platform/graphics/TextRun.h"
-#include "wtf/HashSet.h"
-#include "wtf/OwnPtr.h"
-#include "wtf/PassOwnPtr.h"
-#include "wtf/unicode/CharacterNames.h"
-#include "wtf/Vector.h"
-
-namespace WebCore {
-
-class Font;
-class SimpleFontData;
-
-class HarfBuzzShaper FINAL {
-public:
-    enum NormalizeMode {
-        DoNotNormalizeMirrorChars,
-        NormalizeMirrorChars
-    };
-
-    HarfBuzzShaper(const Font*, const TextRun&);
-
-    void setDrawRange(int from, int to);
-    bool shape(GlyphBuffer* = 0);
-    FloatPoint adjustStartPoint(const FloatPoint&);
-    float totalWidth() { return m_totalWidth; }
-    int offsetForPosition(float targetX);
-    FloatRect selectionRect(const FloatPoint&, int height, int from, int to);
-
-private:
-    class HarfBuzzRun {
-    public:
-        HarfBuzzRun(const HarfBuzzRun&);
-        ~HarfBuzzRun();
-
-        static PassOwnPtr<HarfBuzzRun> create(const SimpleFontData* fontData, unsigned startIndex, unsigned numCharacters, TextDirection direction, hb_script_t script)
-        {
-            return adoptPtr(new HarfBuzzRun(fontData, startIndex, numCharacters, direction, script));
-        }
-
-        void applyShapeResult(hb_buffer_t*);
-        void copyShapeResultAndGlyphPositions(const HarfBuzzRun&);
-        void setGlyphAndPositions(unsigned index, uint16_t glyphId, float advance, float offsetX, float offsetY);
-        void setWidth(float width) { m_width = width; }
-
-        int characterIndexForXPosition(float targetX);
-        float xPositionForOffset(unsigned offset);
-
-        const SimpleFontData* fontData() { return m_fontData; }
-        unsigned startIndex() const { return m_startIndex; }
-        unsigned numCharacters() const { return m_numCharacters; }
-        unsigned numGlyphs() const { return m_numGlyphs; }
-        uint16_t* glyphs() { return &m_glyphs[0]; }
-        float* advances() { return &m_advances[0]; }
-        FloatPoint* offsets() { return &m_offsets[0]; }
-        uint16_t* glyphToCharacterIndexes() { return &m_glyphToCharacterIndexes[0]; }
-        float width() { return m_width; }
-        bool rtl() { return m_direction == RTL; }
-        hb_script_t script() { return m_script; }
-
-    private:
-        HarfBuzzRun(const SimpleFontData*, unsigned startIndex, unsigned numCharacters, TextDirection, hb_script_t);
-
-        const SimpleFontData* m_fontData;
-        unsigned m_startIndex;
-        size_t m_numCharacters;
-        unsigned m_numGlyphs;
-        TextDirection m_direction;
-        hb_script_t m_script;
-        Vector<uint16_t, 256> m_glyphs;
-        Vector<float, 256> m_advances;
-        Vector<uint16_t, 256> m_glyphToCharacterIndexes;
-        Vector<FloatPoint, 256> m_offsets;
-        float m_width;
-    };
-
-    void setNormalizedBuffer(NormalizeMode = DoNotNormalizeMirrorChars);
-
-    bool isWordEnd(unsigned);
-    int determineWordBreakSpacing();
-    // setPadding sets a number of pixels to be distributed across the TextRun.
-    // WebKit uses this to justify text.
-    void setPadding(int);
-
-    // In complex text word-spacing affects each line-break, space (U+0020) and non-breaking space (U+00A0).
-    static bool isCodepointSpace(UChar c) { return c == ' ' || c == noBreakSpace || c == '\n'; }
-
-    void setFontFeatures();
-
-    bool collectHarfBuzzRuns();
-    bool shapeHarfBuzzRuns(bool shouldSetDirection);
-    bool fillGlyphBuffer(GlyphBuffer*);
-    void fillGlyphBufferFromHarfBuzzRun(GlyphBuffer*, HarfBuzzRun*, FloatPoint& firstOffsetOfNextRun);
-    void setGlyphPositionsForHarfBuzzRun(HarfBuzzRun*, hb_buffer_t*);
-
-    GlyphBufferAdvance createGlyphBufferAdvance(float, float);
-
-    const Font* m_font;
-    OwnPtr<UChar[]> m_normalizedBuffer;
-    unsigned m_normalizedBufferLength;
-    const TextRun& m_run;
-
-    int m_wordSpacingAdjustment; // Delta adjustment (pixels) for each word break.
-    float m_padding; // Pixels to be distributed over the line at word breaks.
-    float m_padPerWordBreak; // Pixels to be added to each word break.
-    float m_padError; // m_padPerWordBreak might have a fractional component. Since we only add a whole number of padding pixels at each word break we accumulate error. This is the number of pixels that we are behind so far.
-    int m_letterSpacing; // Pixels to be added after each glyph.
-
-    Vector<hb_feature_t, 4> m_features;
-    Vector<OwnPtr<HarfBuzzRun>, 16> m_harfBuzzRuns;
-
-    FloatPoint m_startOffset;
-
-    int m_fromIndex;
-    int m_toIndex;
-
-    float m_totalWidth;
-
-    friend struct CachedShapingResults;
-};
-
-} // namespace WebCore
-
-#endif // HarfBuzzShaper_h