Make the use of fallback fonts in Android a runtime decision.

src/core/SkPaintOptionsAndroid.cpp

 
 /*
  * Copyright 2012 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.
  */
 
 #ifdef SK_BUILD_FOR_ANDROID
 
@@ skipping 12 matching lines @@
     if (parentTagEnd == NULL) {
         return SkLanguage();
     }
     size_t parentTagLen = parentTagEnd - tag;
     return SkLanguage(tag, parentTagLen);
 }
 
 void SkPaintOptionsAndroid::flatten(SkFlattenableWriteBuffer& buffer) const {
     buffer.writeUInt(fFontVariant);
     buffer.writeString(fLanguage.getTag().c_str());
+    buffer.writeBool(fUseFontFallbacks);
 }
 
 void SkPaintOptionsAndroid::unflatten(SkFlattenableReadBuffer& buffer) {
     fFontVariant = (FontVariant)buffer.readUInt();
     char* tag = buffer.readString();
     fLanguage = SkLanguage(tag);
     sk_free(tag);
+    fUseFontFallbacks = buffer.readBool();
 }
 
 #endif