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

compat/non_cxx11_lib/type_traits

Index: compat/non_cxx11_lib/type_traits
diff --git a/util/misc/random_string.h b/compat/non_cxx11_lib/type_traits
similarity index 57%
copy from util/misc/random_string.h
copy to compat/non_cxx11_lib/type_traits
index 93b3a7fa4620f149529c8af1e9b067b9a81ca4a4..9f11fd4a8a234d2649494f74cd8c15060e1d6c5c 100644
--- a/util/misc/random_string.h
+++ b/compat/non_cxx11_lib/type_traits
@@ -12,20 +12,26 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef CRASHPAD_UTIL_MISC_RANDOM_STRING_H_
-#define CRASHPAD_UTIL_MISC_RANDOM_STRING_H_
+#ifndef CRASHPAD_COMPAT_NON_CXX11_LIB_TYPE_TRAITS_
+#define CRASHPAD_COMPAT_NON_CXX11_LIB_TYPE_TRAITS_
 
-#include <string>
+#include "util/stdlib/cxx.h"
 
-namespace crashpad {
+#if CXX_LIBRARY_VERSION >= 2011
 
-//! \brief Returns a random string.
-//!
-//! The string consists of 16 uppercase characters chosen at random. The
-//! returned string has over 75 bits of randomness (26<sup>16</sup> &gt;
-//! 2<sup>75</sup>).
-std::string RandomString();
+#include_next <type_traits>
 
-}  // namespace crashpad
+#else
 
-#endif  // CRASHPAD_UTIL_MISC_RANDOM_STRING_H_
+namespace std {
+
+template <class T>
+struct remove_reference { using type = T; };
+template <class T>
+struct remove_reference<T&> { using type = T; };
+
+}  // namespace std
+
+#endif  // CXX_LIBRARY_VERSION
+
+#endif  // CRASHPAD_COMPAT_NON_CXX11_LIB_TYPE_TRAITS_