Revert of Switch to HarfBuzz on Mac and remove CoreText shaper

Source/platform/fonts/cocoa/FontPlatformDataCocoa.mm

Index: Source/platform/fonts/cocoa/FontPlatformDataCocoa.mm
diff --git a/Source/platform/fonts/cocoa/FontPlatformDataCocoa.mm b/Source/platform/fonts/cocoa/FontPlatformDataCocoa.mm
index 71200f3634833bd6093686985b793d02996e4750..b7b8f756fe30a5dd845d4418487cec8a7505a20e 100644
--- a/Source/platform/fonts/cocoa/FontPlatformDataCocoa.mm
+++ b/Source/platform/fonts/cocoa/FontPlatformDataCocoa.mm
@@ -28,12 +28,8 @@
 #import <AvailabilityMacros.h>
 #import <wtf/text/WTFString.h>
 
-#include "platform/LayoutTestSupport.h"
-#include "platform/RuntimeEnabledFeatures.h"
 #import "platform/fonts/harfbuzz/HarfBuzzFace.h"
 #include "third_party/skia/include/ports/SkTypeface_mac.h"
-
-
 
 namespace blink {
 
@@ -42,29 +38,6 @@
     ASSERT(m_font || !m_cgFont);
     uintptr_t hashCodes[3] = { (uintptr_t)m_font, m_widthVariant, static_cast<uintptr_t>(m_isHashTableDeletedValue << 3 | m_orientation << 2 | m_syntheticBold << 1 | m_syntheticItalic) };
     return StringHasher::hashMemory<sizeof(hashCodes)>(hashCodes);
-}
-
-void FontPlatformData::setupPaint(SkPaint* paint, GraphicsContext*) const
-{
-    bool shouldSmoothFonts = true;
-    bool shouldAntialias = true;
-
-    shouldAntialias = shouldAntialias && (!LayoutTestSupport::isRunningLayoutTest()
-        || LayoutTestSupport::isFontAntialiasingEnabledForTest());
-    bool useSubpixelText = RuntimeEnabledFeatures::subpixelFontScalingEnabled();
-    shouldSmoothFonts = shouldSmoothFonts && !LayoutTestSupport::isRunningLayoutTest();
-
-    paint->setAntiAlias(shouldAntialias);
-    paint->setEmbeddedBitmapText(false);
-    const float ts = m_textSize >= 0 ? m_textSize : 12;
-    paint->setTextSize(SkFloatToScalar(ts));
-    paint->setTypeface(typeface());
-    paint->setFakeBoldText(m_syntheticBold);
-    paint->setTextSkewX(m_syntheticItalic ? -SK_Scalar1 / 4 : 0);
-    paint->setAutohinted(false); // freetype specific
-    paint->setLCDRenderText(shouldSmoothFonts);
-    paint->setSubpixelText(useSubpixelText);
-    paint->setHinting(SkPaint::kNo_Hinting);
 }
 
 // These CoreText Text Spacing feature selectors are not defined in CoreText.
@@ -291,4 +264,19 @@
     return m_CTFont.get();
 }
 
+bool FontPlatformData::isAATFont(CTFontRef ctFont) const
+{
+    CFDataRef table = CTFontCopyTable(ctFont, kCTFontTableMort, 0);
+    if (table) {
+        CFRelease(table);
+        return true;
+    }
+    table = CTFontCopyTable(ctFont, kCTFontTableMorx, 0);
+    if (table) {
+        CFRelease(table);
+        return true;
+    }
+    return false;
+}
+
 } // namespace blink