Provide std::move() in compat instead of using crashpad::move()

minidump/minidump_string_writer.cc

Index: minidump/minidump_string_writer.cc
diff --git a/minidump/minidump_string_writer.cc b/minidump/minidump_string_writer.cc
index af210c2430b77c2a99c24517d928efd396fc47d3..bf40d256c8722eb3c1fbed8eefa92640cd8318b9 100644
--- a/minidump/minidump_string_writer.cc
+++ b/minidump/minidump_string_writer.cc
@@ -16,10 +16,11 @@
 
 #include <sys/types.h>
 
+#include <utility>
+
 #include "base/logging.h"
 #include "minidump/minidump_writer_util.h"
 #include "util/file/file_writer.h"
-#include "util/stdlib/move.h"
 #include "util/numeric/safe_assignment.h"
 
 namespace crashpad {
@@ -122,7 +123,7 @@ void MinidumpStringListWriter<MinidumpStringWriterType>::AddStringUTF8(
     const std::string& string_utf8) {
   auto string_writer = make_scoped_ptr(new MinidumpStringWriterType());
   string_writer->SetUTF8(string_utf8);
-  AddChild(crashpad::move(string_writer));
+  AddChild(std::move(string_writer));
 }
 
 template <typename MinidumpStringWriterType>