Implement onGetTableTags and onGetTableData on Windows.

include/core/SkTypeface.h

 
 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkTypeface_DEFINED
 #define SkTypeface_DEFINED
 
 #include "SkAdvancedTypefaceMetrics.h"
 #include "SkWeakRefCnt.h"
 
 class SkDescriptor;
 class SkFontDescriptor;
 class SkScalerContext;
 struct SkScalerContextRec;
 class SkStream;
 class SkAdvancedTypefaceMetrics;
 class SkWStream;
 
 typedef uint32_t SkFontID;
+/** Machine endian. */
 typedef uint32_t SkFontTableTag;
 
 /** \class SkTypeface
 
     The SkTypeface class specifies the typeface and intrinsic style of a font.
     This is used in the paint, along with optionally algorithmic settings like
     textSize, textSkewX, textScaleX, kFakeBoldText_Mask, to specify
     how text appears when drawn (and measured).
 
     Typeface objects are immutable, and so they can be shared between threads.
@@ skipping 252 matching lines @@
                         uint32_t glyphIDsCount) const = 0;
     virtual SkStream* onOpenStream(int* ttcIndex) const = 0;
     virtual void onGetFontDescriptor(SkFontDescriptor*, bool* isLocal) const = 0;
 
     virtual int onCharsToGlyphs(const void* chars, Encoding, uint16_t glyphs[],
                                 int glyphCount) const;
     virtual int onCountGlyphs() const = 0;
 
     virtual int onGetUPEM() const = 0;
 
-    virtual int onGetTableTags(SkFontTableTag tags[]) const;
+    virtual int onGetTableTags(SkFontTableTag tags[]) const = 0;
     virtual size_t onGetTableData(SkFontTableTag, size_t offset,
-                                  size_t length, void* data) const;
+                                  size_t length, void* data) const = 0;
 
-    // TODO: make this pure-virtual when all ports have overridden it
-    virtual SkTypeface* onRefMatchingStyle(Style styleBits) const {
-        SkASSERT(0);
-        this->ref();
-        return const_cast<SkTypeface*>(this);
-    }
+    virtual SkTypeface* onRefMatchingStyle(Style styleBits) const = 0;
 
 private:
     SkFontID    fUniqueID;
     Style       fStyle;
     bool        fIsFixedPitch;
 
     friend class SkPaint;
     friend class SkGlyphCache;  // GetDefaultTypeface
     // just so deprecated fonthost can call protected methods
     friend class SkFontHost;
 
     typedef SkWeakRefCnt INHERITED;
 };
 
 #endif