Transfer DictionaryValue ownership in SandboxedUnpacker::OnUnpackSuccess()

extensions/browser/sandboxed_unpacker_unittest.cc

Index: extensions/browser/sandboxed_unpacker_unittest.cc
diff --git a/extensions/browser/sandboxed_unpacker_unittest.cc b/extensions/browser/sandboxed_unpacker_unittest.cc
index e39f7b2fc4dd22617d7195459b4a56b9f80f263a..8330efa65af7ccc574ba5ea2ecdb8bc7e19d5d0d 100644
--- a/extensions/browser/sandboxed_unpacker_unittest.cc
+++ b/extensions/browser/sandboxed_unpacker_unittest.cc
@@ -45,7 +45,7 @@ class MockSandboxedUnpackerClient : public SandboxedUnpackerClient {
 
   void OnUnpackSuccess(const base::FilePath& temp_dir,
                        const base::FilePath& extension_root,
-                       const base::DictionaryValue* original_manifest,
+                       std::unique_ptr<base::DictionaryValue> original_manifest,
                        const Extension* extension,
                        const SkBitmap& install_icon) override {
     temp_dir_ = temp_dir;