base: Change auto to not deduce raw pointers.

base/files/file_path_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <stddef.h>
 
 #include <sstream>
 
 #include "base/files/file_path.h"
 #include "base/macros.h"
@@ skipping 1288 matching lines @@
 // strings.
 #if defined(OS_MACOSX)
 TEST_F(FilePathTest, GetHFSDecomposedFormWithInvalidInput) {
   const FilePath::CharType* cases[] = {
     FPL("\xc3\x28"),
     FPL("\xe2\x82\x28"),
     FPL("\xe2\x28\xa1"),
     FPL("\xf0\x28\x8c\xbc"),
     FPL("\xf0\x28\x8c\x28"),
   };
-  for (const auto& invalid_input : cases) {
+  for (auto* invalid_input : cases) {
     FilePath::StringType observed = FilePath::GetHFSDecomposedForm(
         invalid_input);
     EXPECT_TRUE(observed.empty());
   }
 }
 #endif
 
 }  // namespace base