Initialize SkVertices::Sizes::fTotal

This value is used to determine if construction of the Sizes succeeded.
At some point, early returns were added to the constructor, causing
serialization code to use an uninitialized value if any of those early
returns triggered.

Bug: oss-fuzz:23697
Change-Id: I65479e30fd6fdf5d5f43dc1ea1247e18d546fa12
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/298850
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed