Try last resort on no-match in platformFallbackForCharacter on Android

Source/platform/fonts/android/FontCacheAndroid.cpp

Index: Source/platform/fonts/android/FontCacheAndroid.cpp
diff --git a/Source/platform/fonts/android/FontCacheAndroid.cpp b/Source/platform/fonts/android/FontCacheAndroid.cpp
index 24802fa6793fedad5a09727412633398917f8b4c..4f36d73221b5ca37cf6a3c048b99142be65019e0 100644
--- a/Source/platform/fonts/android/FontCacheAndroid.cpp
+++ b/Source/platform/fonts/android/FontCacheAndroid.cpp
@@ -64,7 +64,8 @@ static AtomicString getFamilyNameForCharacter(UChar32 c, UScriptCode script)
 
     SkString skiaFamilyName;
     if (!SkGetFallbackFamilyNameForChar(c, locale, &skiaFamilyName) || skiaFamilyName.isEmpty())
-        return AtomicString();
+        return emptyAtom;
+
     return skiaFamilyName.c_str();
 }
 
@@ -72,7 +73,7 @@ PassRefPtr<SimpleFontData> FontCache::platformFallbackForCharacter(const FontDes
 {
     AtomicString familyName = getFamilyNameForCharacter(c, fontDescription.script());
     if (familyName.isEmpty())
-        return nullptr;
+        return getLastResortFallbackFont(fontDescription, DoNotRetain);
     return fontDataFromFontPlatformData(getFontPlatformData(fontDescription, familyName), DoNotRetain);
 }