Return a unique_ptr from BinaryValue::CreateWithCopiedBuffer.

extensions/browser/api/web_request/upload_data_presenter.h

Index: extensions/browser/api/web_request/upload_data_presenter.h
diff --git a/extensions/browser/api/web_request/upload_data_presenter.h b/extensions/browser/api/web_request/upload_data_presenter.h
index 05630f3dcbc4be912b01f673f13ac1acb45b7326..fc2f5d79c590ba0717be20d75c84131fc9c78735 100644
--- a/extensions/browser/api/web_request/upload_data_presenter.h
+++ b/extensions/browser/api/web_request/upload_data_presenter.h
@@ -35,10 +35,9 @@ namespace subtle {
 
 // Helpers shared with unit-tests.
 
-// Appends a dictionary {'key': 'value'} to |list|. |list| becomes the owner of
-// |value|.
+// Appends a dictionary {'key': 'value'} to |list|.
 void AppendKeyValuePair(const char* key,
-                        base::Value* value,
+                        std::unique_ptr<base::Value> value,
                         base::ListValue* list);
 
 }  // namespace subtle