[core] Merge rfc1123, iso8601, and parse_date into chrono.hpp and fix their API

include/mbgl/util/chrono.hpp

@@ -2,6 +2,7 @@
 #define MBGL_UTIL_CHRONO
 
 #include <chrono>
+#include <string>
 
 namespace mbgl {
 
@@ -42,6 +43,18 @@ Milliseconds toMilliseconds(std::chrono::time_point<_Clock, _Duration> time_poin
     return asMilliseconds(toDuration<_Clock, _Duration>(time_point));
 }
 
+namespace util {
+
+// Returns the RFC1123 formatted date. E.g. "Tue, 04 Nov 2014 02:13:24 GMT"
+std::string rfc1123(SystemTimePoint);
+
+// YYYY-mm-dd HH:MM:SS e.g. "2015-11-26 16:11:23"
+std::string iso8601(SystemTimePoint);
+
+SystemTimePoint parseTimePoint(const char *);
+
+} // namespace util
+
 } // namespace mbgl
 
 #endif

include/mbgl/util/parsedate.h

@@ -1,38 +0,0 @@
-#ifndef HEADER_PARSEDATE_H
-#define HEADER_PARSEDATE_H
-/***************************************************************************
- *                                  _   _ ____  _
- *  Project                     ___| | | |  _ \| |
- *                             / __| | | | |_) | |
- *                            | (__| |_| |  _ <| |___
- *                             \___|\___/|_| \_\_____|
- *
- * Copyright (C) 1998 - 2011, Daniel Stenberg, <daniel@haxx.se>, et al.
- *
- * This software is licensed as described in the file COPYING, which
- * you should have received as part of this distribution. The terms
- * are also available at http://curl.haxx.se/docs/copyright.html.
- *
- * You may opt to use, copy, modify, merge, publish, distribute and/or sell
- * copies of the Software, and permit persons to whom the Software is
- * furnished to do so, under the terms of the COPYING file.
- *
- * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
- * KIND, either express or implied.
- *
- ***************************************************************************/
-
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <time.h>
-
-time_t parse_date(const char *p);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* HEADER_PARSEDATE_H */

include/mbgl/util/time.hpp

@@ -1,24 +0,0 @@
-#ifndef MBGL_UTIL_TIME
-#define MBGL_UTIL_TIME
-
-#include <mbgl/util/chrono.hpp>
-
-#include <string>
-#include <cstdint>
-#include <ctime>
-
-namespace mbgl {
-
-namespace util {
-
-// Returns the RFC1123 formatted date. E.g. "Tue, 04 Nov 2014 02:13:24 GMT"
-std::string rfc1123(std::time_t time);
-
-// YYYY-mm-dd HH:MM:SS e.g. "2015-11-26 16:11:23"
-std::string iso8601(std::time_t time);
-
-} // namespace util
-
-} // namespace mbgl
-
-#endif