Ensure C:/Dumps/ exists in crash_generation_app

A=j.turney
R=ted at https://breakpad.appspot.com/1134002/

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1348 4c0a9323-5329-0410-9bdc-e9ce6186880e

src/client/windows/tests/crash_generation_app/crash_generation_app.cc

@@ -283,6 +283,12 @@ void CrashServerStart() {
   }
 
   std::wstring dump_path = L"C:\\Dumps\\";
+
+  if (_wmkdir(dump_path.c_str()) && (errno != EEXIST)) {
+    MessageBoxW(NULL, L"Unable to create dump directory", L"Dumper", MB_OK);
+    return;
+  }
+
   crash_server = new CrashGenerationServer(kPipeName,
                                            NULL,
                                            ShowClientConnected,