pp_filter_test: quiet static analysis warning

in CheckLowFilterOutput(); use std::unique_ptr to avoid spurious memory
leak warning:

test/pp_filter_test.cc|466 col 3| warning: Potential leak of memory
pointed to by 'expected_output' [cplusplus.NewDeleteLeaks]
  ASSERT_NE(expected_output, nullptr);

Bug: b/229626362
Change-Id: Ie9e06c9b9442ffa134e514d2aee70841d19c8ecb

1 files changed, 8 insertions, 5 deletions

diff --git a/test/pp_filter_test.cc b/test/pp_filter_test.cc
index 775f7f36a..27d5ffa90 100644
--- a/test/pp_filter_test.cc
+++ b/test/pp_filter_test.cc
@@ -7,7 +7,11 @@
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
+
 #include <limits.h>
+
+#include <memory>
+
 #include "./vpx_config.h"
 #include "./vpx_dsp_rtcd.h"
 #include "test/acm_random.h"
@@ -458,14 +462,13 @@ TEST_P(VpxMbPostProcDownTest, CheckLowFilterOutput) {
 
   SetRows(src_c_.TopLeftPixel(), rows_, cols_, src_c_.stride());
 
-  unsigned char *expected_output = new unsigned char[rows_ * cols_];
+  std::unique_ptr<unsigned char[]> expected_output(
+      new unsigned char[rows_ * cols_]);
   ASSERT_NE(expected_output, nullptr);
-  SetRows(expected_output, rows_, cols_, cols_);
+  SetRows(expected_output.get(), rows_, cols_, cols_);
 
   RunFilterLevel(src_c_.TopLeftPixel(), rows_, cols_, src_c_.stride(), q2mbl(0),
-                 expected_output);
-
-  delete[] expected_output;
+                 expected_output.get());
 }
 
 TEST_P(VpxMbPostProcDownTest, CheckCvsAssembly) {