process_proxy: base::StringPiece -> std::string_view

Bug: 691162
Change-Id: I4c377ae4e6f9d07a7db411599208a70ffbc6311a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5321262
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Reviewed-by: Joel Hockey <joelhockey@chromium.org>
Commit-Queue: Joel Hockey <joelhockey@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1267370}
diff --git a/chromeos/process_proxy/process_output_watcher_unittest.cc b/chromeos/process_proxy/process_output_watcher_unittest.cc
index 4473442..d233bd8 100644
--- a/chromeos/process_proxy/process_output_watcher_unittest.cc
+++ b/chromeos/process_proxy/process_output_watcher_unittest.cc
@@ -10,6 +10,7 @@
 #include <memory>
 #include <queue>
 #include <string>
+#include <string_view>
 #include <vector>
 
 #include "base/files/file_util.h"
@@ -174,7 +175,7 @@
       if (test_cases[i].should_send_terminating_null)
         test_size += sizeof(*test_str.c_str());
       EXPECT_TRUE(base::WriteFileDescriptor(
-          pt_pipe[1], base::StringPiece(test_str.c_str(), test_size)));
+          pt_pipe[1], std::string_view(test_str.c_str(), test_size)));
 
       run_loop.Run();
       EXPECT_TRUE(expectations_.IsDone());