Update SkGScalerContext to properly forward onCountGlyphs.



git-svn-id: http://skia.googlecode.com/svn/trunk@10090 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/fonts/SkGScalerContext.h b/src/fonts/SkGScalerContext.h
index b0a2d8a..b238b0b 100644
--- a/src/fonts/SkGScalerContext.h
+++ b/src/fonts/SkGScalerContext.h
@@ -29,6 +29,7 @@
     virtual SkStream* onOpenStream(int* ttcIndex) const SK_OVERRIDE;
     virtual void onGetFontDescriptor(SkFontDescriptor*, bool* isLocal) const SK_OVERRIDE;
 
+    virtual int onCountGlyphs() const SK_OVERRIDE;
     virtual int onGetUPEM() const SK_OVERRIDE;
 
     virtual int onGetTableTags(SkFontTableTag tags[]) const SK_OVERRIDE;