Revert of Switch to HarfBuzz on Mac and remove CoreText shaper

Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm

Index: Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm
diff --git a/Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm b/Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm
deleted file mode 100644
index 84687955f01a7ae145d05a627f0edb316210e27a..0000000000000000000000000000000000000000
--- a/Source/platform/fonts/harfbuzz/HarfBuzzFaceCoreText.mm
+++ /dev/null
@@ -1,161 +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.
- */
-
-#include "config.h"
-#include "platform/fonts/harfbuzz/HarfBuzzFace.h"
-
-#include "hb-coretext.h"
-#include "hb.h"
-#include "platform/fonts/FontPlatformData.h"
-#include "platform/fonts/SimpleFontData.h"
-#include "platform/fonts/harfbuzz/HarfBuzzShaper.h"
-#include <AppKit/AppKit.h>
-#include <ApplicationServices/ApplicationServices.h>
-
-// The names of these constants were taken from history
-// /trunk/WebKit/WebCoreSupport.subproj/WebTextRenderer.m@9311. The values
-// were derived from the assembly of libWebKitSystemInterfaceLeopard.a.
-enum CGFontRenderingMode {
-  kCGFontRenderingMode1BitPixelAligned = 0x0,
-  kCGFontRenderingModeAntialiasedPixelAligned = 0x1,
-  kCGFontRenderingModeAntialiased = 0xd
-};
-
-// Forward declare Mac SPIs.
-extern "C" {
-// Request for public API: rdar://13803586
-bool CGFontGetGlyphAdvancesForStyle(CGFontRef font, CGAffineTransform* transform, CGFontRenderingMode renderingMode, ATSGlyphRef* glyph, size_t count, CGSize* advance);
-}
-
-static CGFontRenderingMode cgFontRenderingModeForNSFont(NSFont* font) {
-    if (!font)
-        return kCGFontRenderingModeAntialiasedPixelAligned;
-
-    switch ([font renderingMode]) {
-        case NSFontIntegerAdvancementsRenderingMode: return kCGFontRenderingMode1BitPixelAligned;
-        case NSFontAntialiasedIntegerAdvancementsRenderingMode: return kCGFontRenderingModeAntialiasedPixelAligned;
-        default: return kCGFontRenderingModeAntialiased;
-    }
-}
-
-namespace blink {
-
-static void advanceForGlyph(Glyph glyph, const FontPlatformData& platformData, CGSize* advance) {
-    float pointSize = platformData.m_textSize;
-    NSFont *font = platformData.font();
-    CGAffineTransform m = CGAffineTransformMakeScale(pointSize, pointSize);
-    if (!CGFontGetGlyphAdvancesForStyle(platformData.cgFont(), &m, cgFontRenderingModeForNSFont(font), &glyph, 1, advance)) {
-        WTF_LOG_ERROR("Unable to retrieve glyph advance for %@ %f", [font displayName], pointSize);
-        advance->width = 0;
-    }
-}
-
-static hb_position_t floatToHarfBuzzPosition(CGFloat value)
-{
-    return static_cast<hb_position_t>(value * (1 << 16));
-}
-
-static hb_bool_t getGlyph(hb_font_t* hbFont, void* fontData, hb_codepoint_t unicode, hb_codepoint_t variationSelector, hb_codepoint_t* glyph, void* userData)
-{
-    CTFontRef ctFont = reinterpret_cast<FontPlatformData*>(fontData)->ctFont();
-    UniChar characters[4];
-    CGGlyph cgGlyphs[4];
-    size_t length = 0;
-    U16_APPEND_UNSAFE(characters, length, unicode);
-    if (!CTFontGetGlyphsForCharacters(ctFont, characters, cgGlyphs, length))
-        return false;
-    *glyph = cgGlyphs[0];
-    return true;
-}
-
-
-static hb_position_t getGlyphHorizontalAdvance(hb_font_t* hbFont, void* fontData, hb_codepoint_t glyph, void* userData)
-{
-    CGSize advance;
-    FontPlatformData* platformData = reinterpret_cast<FontPlatformData*>(fontData);
-    advanceForGlyph(glyph, *platformData, &advance);
-    float syntheticBoldOffset = platformData->m_syntheticBold ? 1.0f : 0.0f;
-    return floatToHarfBuzzPosition(advance.width + syntheticBoldOffset);
-}
-
-static hb_bool_t getGlyphHorizontalOrigin(hb_font_t* hbFont, void* fontData, hb_codepoint_t glyph, hb_position_t* x, hb_position_t* y, void* userData)
-{
-    return true;
-}
-
-static hb_bool_t getGlyphExtents(hb_font_t* hbFont, void* fontData, hb_codepoint_t glyph, hb_glyph_extents_t* extents, void* userData)
-{
-    CTFontRef ctFont = reinterpret_cast<FontPlatformData*>(fontData)->ctFont();
-    CGRect cgRect;
-    CGGlyph cgGlyph = glyph;
-    if (CTFontGetBoundingRectsForGlyphs(ctFont, kCTFontDefaultOrientation, &cgGlyph, &cgRect, 1) == CGRectNull)
-        return false;
-    extents->x_bearing = floatToHarfBuzzPosition(cgRect.origin.x);
-    extents->y_bearing = -floatToHarfBuzzPosition(cgRect.origin.y);
-    extents->width = floatToHarfBuzzPosition(cgRect.size.width);
-    extents->height = floatToHarfBuzzPosition(cgRect.size.height);
-    return true;
-}
-
-static hb_font_funcs_t* harfBuzzCoreTextGetFontFuncs()
-{
-    static hb_font_funcs_t* harfBuzzCoreTextFontFuncs = 0;
-
-    if (!harfBuzzCoreTextFontFuncs) {
-        harfBuzzCoreTextFontFuncs = hb_font_funcs_create();
-        hb_font_funcs_set_glyph_func(harfBuzzCoreTextFontFuncs, getGlyph, 0, 0);
-        hb_font_funcs_set_glyph_h_advance_func(harfBuzzCoreTextFontFuncs, getGlyphHorizontalAdvance, 0, 0);
-        hb_font_funcs_set_glyph_h_origin_func(harfBuzzCoreTextFontFuncs, getGlyphHorizontalOrigin, 0, 0);
-        hb_font_funcs_set_glyph_extents_func(harfBuzzCoreTextFontFuncs, getGlyphExtents, 0, 0);
-        hb_font_funcs_make_immutable(harfBuzzCoreTextFontFuncs);
-    }
-    return harfBuzzCoreTextFontFuncs;
-}
-
-hb_face_t* HarfBuzzFace::createFace()
-{
-    hb_face_t* face = hb_coretext_face_create(m_platformData->cgFont());
-    ASSERT(face);
-    return face;
-}
-
-hb_font_t* HarfBuzzFace::createFont()
-{
-    hb_font_t* font = hb_font_create(m_face);
-    hb_font_set_funcs(font, harfBuzzCoreTextGetFontFuncs(), m_platformData, 0);
-    const float size = m_platformData->m_textSize;
-    hb_font_set_ppem(font, size, size);
-    const int scale = (1 << 16) * static_cast<int>(size);
-    hb_font_set_scale(font, scale, scale);
-    hb_font_make_immutable(font);
-    return font;
-}
-
-} // namespace blink