added GrSkSLFP and converted DitherEffect to use it

Bug: skia:
Change-Id: I84b71165eab1712355f3c7669cee2d33d259f3df
Reviewed-on: https://skia-review.googlesource.com/124504
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/sksl/ir/SkSLBlock.h b/src/sksl/ir/SkSLBlock.h
index af1975396e..0a03654488 100644
--- a/src/sksl/ir/SkSLBlock.h
+++ b/src/sksl/ir/SkSLBlock.h
@@ -32,6 +32,14 @@ struct Block : public Statement {
         return true;
     }
 
+    std::unique_ptr<Statement> clone() const override {
+        std::vector<std::unique_ptr<Statement>> cloned;
+        for (const auto& s : fStatements) {
+            cloned.push_back(s->clone());
+        }
+        return std::unique_ptr<Statement>(new Block(fOffset, std::move(cloned), fSymbols));
+    }
+
     String description() const override {
         String result("{");
         for (size_t i = 0; i < fStatements.size(); i++) {