Add in Region SetPath Fuzzer

Also refactor a few things to make it easier to use oss-fuzz.

Bug: skia:
Change-Id: Ie518a6cfc7d57a347b5d09089379f986d33f8b7f
Reviewed-on: https://skia-review.googlesource.com/41740
Commit-Queue: Kevin Lubick <kjlubick@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index 3bcea59..16e6819 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1700,6 +1700,8 @@
       "fuzz/FuzzPathop.cpp",
       "fuzz/FuzzScaleToSides.cpp",
       "fuzz/fuzz.cpp",
+      "fuzz/oss_fuzz/FuzzRegionDeserialize.cpp",
+      "fuzz/oss_fuzz/FuzzRegionSetPath.cpp",
       "tools/UrlDataManager.cpp",
       "tools/debugger/SkDebugCanvas.cpp",
       "tools/debugger/SkDrawCommand.cpp",