Try last resort on no-match in platformFallbackForCharacter on Android

Source/platform/fonts/AlternateFontFamily.h

 /*
  * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Nicholas Shanks <webkit@nickshanks.com>
  * Copyright (C) 2013 Google, Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
@@ skipping 88 matching lines @@
         return helvetica;
     if (equalIgnoringCase(familyName, helvetica))
         return arial;
 
     return emptyAtom;
 }
 
 
 inline const AtomicString getFallbackFontFamily(const FontDescription& description)
 {
-    DEFINE_STATIC_LOCAL(const AtomicString, sansStr, ("Sans", AtomicString::ConstructFromLiteral));
-    DEFINE_STATIC_LOCAL(const AtomicString, serifStr, ("Serif", AtomicString::ConstructFromLiteral));
-    DEFINE_STATIC_LOCAL(const AtomicString, monospaceStr, ("Monospace", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, sansStr, ("sans-serif", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, serifStr, ("serif", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, monospaceStr, ("monospace", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, cursiveStr, ("cursive", AtomicString::ConstructFromLiteral));
+    DEFINE_STATIC_LOCAL(const AtomicString, fantasyStr, ("fantasy", AtomicString::ConstructFromLiteral));
 
     switch (description.genericFamily()) {
+    case FontDescription::SansSerifFamily:
+        return sansStr;
     case FontDescription::SerifFamily:
         return serifStr;
     case FontDescription::MonospaceFamily:
         return monospaceStr;
-    case FontDescription::SansSerifFamily:
+    case FontDescription::CursiveFamily:
+        return cursiveStr;
+    case FontDescription::FantasyFamily:
+        return fantasyStr;
     default:
-        return sansStr;
+        // Let the caller use the system default font.
+        return emptyAtom;
     }
 }
 
 } // namespace WebCore
 
 #endif // AlternateFontFamily_h