Get generate_dump compiling on Windows

util/file/basename_win.cc

Index: util/file/basename_win.cc
diff --git a/test/scoped_temp_dir.cc b/util/file/basename_win.cc
similarity index 74%
copy from test/scoped_temp_dir.cc
copy to util/file/basename_win.cc
index 5c151cc0057d69699fe38ed8380c59ca4d336651..1e8e801a96bb7f1fe298b812f6c539c935a96461 100644
--- a/test/scoped_temp_dir.cc
+++ b/util/file/basename_win.cc
@@ -12,17 +12,15 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "test/scoped_temp_dir.h"
+#include "util/file/basename.h"
 
 namespace crashpad {
-namespace test {
 
-ScopedTempDir::ScopedTempDir() : path_(CreateTemporaryDirectory()) {
+std::string Basename(const std::string& path) {
+  char fname[_MAX_FNAME];
+  char ext[_MAX_EXT];
+  _splitpath(path.c_str(), nullptr, nullptr, fname, ext);
+  return std::string(fname) + std::string(ext);
 }
 
-ScopedTempDir::~ScopedTempDir() {
-  RecursivelyDeleteTemporaryDirectory(path());
-}
-
-}  // namespace test
 }  // namespace crashpad