Implement thread name change notification for DDMS.

Change-Id: If63d89991951989f27ee267895244e115661dce9
diff --git a/src/jdwp/jdwp_event.cc b/src/jdwp/jdwp_event.cc
index 7d341d8..6b5ef8c 100644
--- a/src/jdwp/jdwp_event.cc
+++ b/src/jdwp/jdwp_event.cc
@@ -1146,7 +1146,7 @@
  * other debugger traffic, and can't suspend the VM, so we skip all of
  * the fun event token gymnastics.
  */
-void JdwpState::DdmSendChunkV(int type, const iovec* iov, int iovcnt) {
+void JdwpState::DdmSendChunkV(uint32_t type, const iovec* iov, int iovcnt) {
   uint8_t header[kJDWPHeaderLen + 8];
   size_t dataLen = 0;