win: get tools/crashpad_database_util mostly working

compat/win/time.cc

Index: compat/win/time.cc
diff --git a/compat/win/sys/time.h b/compat/win/time.cc
similarity index 74%
copy from compat/win/sys/time.h
copy to compat/win/time.cc
index 46bdef2a3810669fcf310d9d8a29a29980c3c894..dd9f6a8d496e96448fd631f205343e314bdbc228 100644
--- a/compat/win/sys/time.h
+++ b/compat/win/time.cc
@@ -12,12 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#ifndef CRASHPAD_COMPAT_WIN_SYS_TIME_H_
-#define CRASHPAD_COMPAT_WIN_SYS_TIME_H_
+#include <time.h>
 
-struct timeval {
-  long tv_sec;
-  long tv_usec;
-};
+const char* strptime(const char* buf, const char* format, struct tm* tm) {
+  // TODO(scottmg): strptime implementation.
+  return nullptr;
+}
 
-#endif  // CRASHPAD_COMPAT_WIN_SYS_TIME_H_
+time_t timegm(struct tm* tm) {
+  return _mkgmtime(tm);
+}