Update fontMgr to take list of bcp47 language tags.

src/ports/SkFontMgr_fontconfig.cpp

Index: src/ports/SkFontMgr_fontconfig.cpp
diff --git a/src/ports/SkFontMgr_fontconfig.cpp b/src/ports/SkFontMgr_fontconfig.cpp
index 6fc1f28c89bc318ce2d26622b5acf94f0da295ef..95560a70516fc64ca726009fbb343a7744d877a2 100644
--- a/src/ports/SkFontMgr_fontconfig.cpp
+++ b/src/ports/SkFontMgr_fontconfig.cpp
@@ -771,8 +771,9 @@ protected:
 
     virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[],
                                                     const SkFontStyle& style,
-                                                    const char bpc47[],
-                                                    uint32_t character) const SK_OVERRIDE
+                                                    const char** bcp47,
+                                                    size_t bcpLength,
+                                                    SkUnichar character) const SK_OVERRIDE
     {
         FCLocker lock;
 
@@ -784,9 +785,12 @@ protected:
         FcCharSetAddChar(charSet, character);
         FcPatternAddCharSet(pattern, FC_CHARSET, charSet);
 
-        if (bpc47) {
+        if (bcpLength > 0) {
+            SkASSERT(bcp47);
             SkAutoFcLangSet langSet;
-            FcLangSetAdd(langSet, (const FcChar8*)bpc47);
+            for (size_t i = 0; i < bcpLength; i++) {
+                FcLangSetAdd(langSet, (const FcChar8*)bcp47[i]);
+            }
             FcPatternAddLangSet(pattern, FC_LANG, langSet);
         }