Changed JSON formatting more, workaround bug where SkStringPrintf causes encoding issues

BUG=skia:
R=bensong@google.com, jcgregorio@google.com, reed@google.com, bsalomon@google.com

Author: kelvinly@google.com

Review URL: https://codereview.chromium.org/294093002

git-svn-id: http://skia.googlecode.com/svn/trunk@14808 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/utils/SkJSONCPP.h b/include/utils/SkJSONCPP.h
index 966d064..0582e8f 100644
--- a/include/utils/SkJSONCPP.h
+++ b/include/utils/SkJSONCPP.h
@@ -21,6 +21,7 @@
 #endif
 #include "json/reader.h"
 #include "json/value.h"
+#include "json/writer.h"
 #ifdef SK_BUILD_FOR_WIN
     #pragma warning(pop)
 #endif