[Tooling] [0/1] Refactor FrontendActionFactory::create() to return std::unique_ptr<>

Summary:
Noticed during review of D41102.

I'm not sure whether there are any principal reasons why it returns raw owning pointer,
or it is just a old code that was not updated post-C++11.

I'm not too sure what testing i should do, because `check-all` is not error clean here for some reason,
but it does not //appear// asif those failures are related to these changes.

This is clang part.
Clang-tools-extra part is D43780.

Reviewers: klimek, bkramer, alexfh, pcc

Reviewed By: alexfh

Subscribers: cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D43779

llvm-svn: 326201

1 files changed, 3 insertions, 1 deletions

diff --git a/clang/tools/clang-refactor/ClangRefactor.cpp b/clang/tools/clang-refactor/ClangRefactor.cpp
index 950b80062cd..925bc908a42 100644
--- a/clang/tools/clang-refactor/ClangRefactor.cpp
+++ b/clang/tools/clang-refactor/ClangRefactor.cpp
@@ -462,7 +462,9 @@ public:
       ToolActionFactory(TUCallbackType Callback)
           : Callback(std::move(Callback)) {}
 
-      FrontendAction *create() override { return new ToolASTAction(Callback); }
+      std::unique_ptr<FrontendAction> create() override {
+        return llvm::make_unique<ToolASTAction>(Callback);
+      }
 
     private:
       TUCallbackType Callback;