Add a fontConfig interface for android.

include/ports/SkTypeface_android.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef SkTypeface_android_DEFINED
 #define SkTypeface_android_DEFINED
 
 #ifdef SK_BUILD_FOR_ANDROID
 
 #include "SkTypeface.h"
 
+class SkPaintOptionsAndroid;
+
 /**
  *  Get the family name of the font in the fallback font list containing
- *  the specified chararacter. if no font is found, returns false.
+ *  the specified character. if no font is found, returns false.
  */
 SK_API bool SkGetFallbackFamilyNameForChar(SkUnichar uni, SkString* name);
 
 /**
  *  For test only.
  *  Load font config from given xml files, instead of those from Android system.
  */
 SK_API void SkUseTestFontConfigFile(const char* mainconf, const char* fallbackconf,
                                     const char* fontsdir);
 
@@ skipping 10 matching lines @@
  *  the best next logical font. e.g. If the original font was bold or serif,
  *  but the 2nd in the logical chain was plain, then a subsequent call to
  *  get the 3rd can still inspect the original, and try to match its
  *  stylistic attributes.
  */
 SkTypeface* SkAndroidNextLogicalTypeface(SkFontID currFontID, SkFontID origFontID,
                                          const SkPaintOptionsAndroid& options);
 
 #endif // #ifdef SK_BUILD_FOR_ANDROID
 #endif // #ifndef SkTypeface_android_DEFINED