add flag for future skia cl

TBR=fmalita

Change-Id: I0450b8c8a708f3418c12dbc6671e20f8e1c5c3e7
Reviewed-on: https://chromium-review.googlesource.com/c/1346669Reviewed-by: Mike Reed <reed@google.com>
Reviewed-by: Florin Malita <fmalita@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610062}

skia/config/SkUserConfig.h

@@ -140,6 +140,10 @@ SK_API void SkDebugf_FileLine(const char* file, int line, bool fatal,
 #   define SK_SUPPORT_LEGACY_ANISOTROPIC_MIPMAP_SCALE
 #endif
 
+#ifndef SK_SUPPORT_LEGACY_TEXTBLOBBUILD_WITH_PAINT
+#define SK_SUPPORT_LEGACY_TEXTBLOBBUILD_WITH_PAINT
+#endif
+
 // Remove this after we fixed all the issues related to the new SDF algorithm
 // (https://codereview.chromium.org/1643143002)
 #ifndef SK_USE_LEGACY_DISTANCE_FIELDS