Hide SaveFlags from the public SkCanvas API.

src/core/SkPictureRecord.cpp

Index: src/core/SkPictureRecord.cpp
diff --git a/src/core/SkPictureRecord.cpp b/src/core/SkPictureRecord.cpp
index c5e329e7bfaffcb087205124f481af8c5ee7ca50..ccc0b580d7acd7f1cf50151062f87c6d3fb04cc6 100644
--- a/src/core/SkPictureRecord.cpp
+++ b/src/core/SkPictureRecord.cpp
@@ -511,6 +511,7 @@ static bool collapse_save_clip_restore(SkWriter32* writer, int32_t offset,
     SkASSERT(SAVE == op);
     SkASSERT(kSaveSize == opSize);
 
+#ifdef SK_SUPPORT_LEGACY_SAVEFLAGS
     // get the save flag (last 4-bytes of the space allocated for the opSize)
     SkCanvas::SaveFlags saveFlags = (SkCanvas::SaveFlags) writer->readTAt<uint32_t>(offset + 4);
     if (SkCanvas::kMatrixClip_SaveFlag != saveFlags) {
@@ -519,6 +520,7 @@ static bool collapse_save_clip_restore(SkWriter32* writer, int32_t offset,
         // offending operations in the following loop.
         return false;
     }
+#endif
 
     // Walk forward until we get back to either a draw-verb (abort) or we hit
     // our restore (success).