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..7f794690d769bf0cf7a11835e98d11bd645994b6 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[],
+                                                    int 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 (int i = 0; i < bcpLength; i++) {
+                FcLangSetAdd(langSet, (const FcChar8*)bcp47[i]);
+            }
             FcPatternAddLangSet(pattern, FC_LANG, langSet);
         }