Add rtppacketuil.h/cc

talk/media/base/turnutils.h

Index: talk/media/base/turnutils.h
diff --git a/talk/media/devices/deviceinfo.h b/talk/media/base/turnutils.h
similarity index 75%
copy from talk/media/devices/deviceinfo.h
copy to talk/media/base/turnutils.h
index 86382f61458bcb8f119c8e00c3a51a8db2f9bcb2..47fcebef6eadd198dfdf0f6fb7d635d913ff6516 100644
--- a/talk/media/devices/deviceinfo.h
+++ b/talk/media/base/turnutils.h
@@ -1,6 +1,6 @@
 /*
  * libjingle
- * Copyright 2012 Google Inc.
+ * Copyright 2016 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
@@ -25,18 +25,23 @@
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef TALK_MEDIA_DEVICES_DEVICEINFO_H_
-#define TALK_MEDIA_DEVICES_DEVICEINFO_H_
+#ifndef TALK_MEDIA_BASE_TURNUTILS_H_
+#define TALK_MEDIA_BASE_TURNUTILS_H_
 
-#include <string>
-
-#include "talk/media/devices/devicemanager.h"
+#include <cstddef>
+#include <cstdint>
 
 namespace cricket {
 
-bool GetUsbId(const Device& device, std::string* usb_id);
-bool GetUsbVersion(const Device& device, std::string* usb_version);
+struct PacketOptions;
+
+// Finds data location within a TURN Channel Message or TURN Send Indication
+// message.
+bool UnwrapTurnPacket(const uint8_t* packet,
+                      size_t packet_size,
+                      size_t* content_position,
+                      size_t* content_size);
 
 }  // namespace cricket
 
-#endif  // TALK_MEDIA_DEVICES_DEVICEINFO_H_
+#endif  // TALK_MEDIA_BASE_TURNUTILS_H_