Remove support for Mac OS X Leopard (10.5)

Source/core/platform/graphics/cocoa/FontPlatformDataCocoa.mm

 /*
  * This file is part of the internal font implementation.
  *
  * Copyright (C) 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (c) 2010 Google Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 60 matching lines @@
 }
 
 FontPlatformData:: ~FontPlatformData()
 {
     if (m_font && m_font != reinterpret_cast<NSFont *>(-1))
         CFRelease(m_font);
 }
 
 void FontPlatformData::platformDataInit(const FontPlatformData& f)
 {
-    m_font = f.m_font && f.m_font != reinterpret_cast<NSFont *>(-1) ? const_cast<NSFont *>(static_cast<const NSFont *>(CFRetain(f.m_font))) : f.m_font;
+    m_font = f.m_font && f.m_font != reinterpret_cast<NSFont *>(-1) ? [f.m_font retain] : f.m_font;
 
     m_cgFont = f.m_cgFont;
     m_CTFont = f.m_CTFont;
 
 #if OS(DARWIN)
     m_inMemoryFont = f.m_inMemoryFont;
     m_harfBuzzFace = f.m_harfBuzzFace;
 #endif
 }
 
@@ skipping 134 matching lines @@
 
     const void* keys[] = { kCTFontFeatureSettingsAttribute };
     const void* values[] = { featureSettings.get() };
     RetainPtr<CFDictionaryRef> attributes(AdoptCF, CFDictionaryCreate(kCFAllocatorDefault, keys, values, WTF_ARRAY_LENGTH(keys), &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks));
 
     descriptor = CTFontDescriptorCreateCopyWithAttributes(cascadeToLastResortFontDescriptor(), attributes.get());
 
     return descriptor;
 }
 
-// Adding a cascade list breaks the font on Leopard
-static bool canSetCascadeListForCustomFont()
-{
-#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1060
-    return true;
-#else
-    return false;
-#endif
-}
-
 CTFontRef FontPlatformData::ctFont() const
 {
     if (m_CTFont)
         return m_CTFont.get();
 
     if (m_inMemoryFont) {
-        m_CTFont.adoptCF(CTFontCreateWithGraphicsFont(m_inMemoryFont->cgFont(), m_size, 0, canSetCascadeListForCustomFont() ? cascadeToLastResortFontDescriptor() : 0));
+        m_CTFont.adoptCF(CTFontCreateWithGraphicsFont(m_inMemoryFont->cgFont(), m_size, 0, cascadeToLastResortFontDescriptor()));
         return m_CTFont.get();
     }
 
     m_CTFont = toCTFontRef(m_font);
     if (m_CTFont) {
         CTFontDescriptorRef fontDescriptor;
         RetainPtr<CFStringRef> postScriptName(AdoptCF, CTFontCopyPostScriptName(m_CTFont.get()));
         // Hoefler Text Italic has line-initial and -final swashes enabled by default, so disable them.
         if (CFEqual(postScriptName.get(), CFSTR("HoeflerText-Italic")) || CFEqual(postScriptName.get(), CFSTR("HoeflerText-BlackItalic")))
             fontDescriptor = cascadeToLastResortAndDisableSwashesFontDescriptor();
         else
             fontDescriptor = cascadeToLastResortFontDescriptor();
         m_CTFont.adoptCF(CTFontCreateCopyWithAttributes(m_CTFont.get(), m_size, 0, fontDescriptor));
     } else
-        m_CTFont.adoptCF(CTFontCreateWithGraphicsFont(m_cgFont.get(), m_size, 0, canSetCascadeListForCustomFont() ? cascadeToLastResortFontDescriptor() : 0));
+        m_CTFont.adoptCF(CTFontCreateWithGraphicsFont(m_cgFont.get(), m_size, 0, cascadeToLastResortFontDescriptor()));
 
     if (m_widthVariant != RegularWidth) {
         int featureTypeValue = kTextSpacingType;
         int featureSelectorValue = mapFontWidthVariantToCTFeatureSelector(m_widthVariant);
         RetainPtr<CTFontDescriptorRef> sourceDescriptor(AdoptCF, CTFontCopyFontDescriptor(m_CTFont.get()));
         RetainPtr<CFNumberRef> featureType(AdoptCF, CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &featureTypeValue));
         RetainPtr<CFNumberRef> featureSelector(AdoptCF, CFNumberCreate(kCFAllocatorDefault, kCFNumberIntType, &featureSelectorValue));
         RetainPtr<CTFontDescriptorRef> newDescriptor(AdoptCF, CTFontDescriptorCreateCopyWithFeature(sourceDescriptor.get(), featureType.get(), featureSelector.get()));
         RetainPtr<CTFontRef> newFont(AdoptCF, CTFontCreateWithFontDescriptor(newDescriptor.get(), m_size, 0));
 
@@ skipping 38 matching lines @@
 #ifndef NDEBUG
 String FontPlatformData::description() const
 {
     RetainPtr<CFStringRef> cgFontDescription(AdoptCF, CFCopyDescription(cgFont()));
     return String(cgFontDescription.get()) + " " + String::number(m_size)
             + (m_syntheticBold ? " synthetic bold" : "") + (m_syntheticOblique ? " synthetic oblique" : "") + (m_orientation ? " vertical orientation" : "");
 }
 #endif
 
 } // namespace WebCore