GTTF: Make temp file deletion failures non-fatal on Windows

base/test/parallel_test_launcher.cc

 // Copyright 2013 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 "base/test/parallel_test_launcher.h"
 
 #if defined(OS_POSIX)
 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>
@@ skipping 92 matching lines @@
 #if defined(OS_WIN)
   FlushFileBuffers(handle.Get());
   handle.Close();
 #elif defined(OS_POSIX)
   output_file_fd_closer.reset();
 #endif
 
   std::string output_file_contents;
   CHECK(base::ReadFileToString(output_file, &output_file_contents));
 
-  CHECK(base::DeleteFile(output_file, false));
+  if (!base::DeleteFile(output_file, false)) {
+    // This needs to be non-fatal at least for Windows.
+    LOG(WARNING) << "Failed to delete " << output_file.AsUTF8Unsafe();
+  }
 
   // Run target callback on the thread it was originating from, not on
   // a worker pool thread.
   message_loop_proxy->PostTask(
       FROM_HERE,
       Bind(&RunCallback,
            callback,
            exit_code,
            TimeTicks::Now() - start_time,
            was_timeout,
@@ skipping 111 matching lines @@
 #endif
   }
 
   fflush(stdout);
 
   // Arm the timer again - otherwise it would fire only once.
   timer_.Reset();
 }
 
 }  // namespace base