Handle odd data lengths in UTF-16 decoder

Source/wtf/text/TextCodecICU.h

Index: Source/wtf/text/TextCodecICU.h
diff --git a/Source/wtf/text/TextCodecICU.h b/Source/wtf/text/TextCodecICU.h
index 92644e802b1d8c1f6168e98ed664119ba114059e..8907aafe237b2a445507b7f83cb39ea3a140aa5a 100644
--- a/Source/wtf/text/TextCodecICU.h
+++ b/Source/wtf/text/TextCodecICU.h
@@ -48,7 +48,7 @@ private:
     TextCodecICU(const TextEncoding&);
     static PassOwnPtr<TextCodec> create(const TextEncoding&, const void*);
 
-    virtual String decode(const char*, size_t length, bool flush, bool stopOnError, bool& sawError) OVERRIDE;
+    virtual String decode(const char*, size_t length, FlushBehavior, bool stopOnError, bool& sawError) OVERRIDE;
     virtual CString encode(const UChar*, size_t length, UnencodableHandling) OVERRIDE;
     virtual CString encode(const LChar*, size_t length, UnencodableHandling) OVERRIDE;