move most of SkFontHost to private (preceeding making it all private)

trunk/include/core/SkFontHost.h

Index: trunk/include/core/SkFontHost.h
===================================================================
--- trunk/include/core/SkFontHost.h	(revision 8112)
+++ trunk/include/core/SkFontHost.h	(working copy)
@@ -48,7 +48,7 @@
     5) Utilites to manage the font cache (budgeting) and gamma correction
 */
 class SK_API SkFontHost {
-public:
+private:
     /** Return a new, closest matching typeface given either an existing family
         (specified by a typeface in that family) or by a familyName and a
         requested style.
@@ -229,6 +229,7 @@
                                size_t offset, size_t length, void* data);
 
     ///////////////////////////////////////////////////////////////////////////
+public:
 
     /** LCDs either have their color elements arranged horizontally or
         vertically. When rendering subpixel glyphs we need to know which way
@@ -291,6 +292,9 @@
         make the handle contained in the typeface useable.
     */
     static void EnsureTypefaceAccessible(const SkTypeface& typeface);
+
+private:
+    friend class SkTypeface;
 };
 
 #endif