Move JDWP to std::vector<iovec> to remove runtime/arrays warning

Change-Id: I8494a25a65de4ebac2b1f4f41c0f5eedf117b7ac
diff --git a/runtime/jdwp/jdwp.h b/runtime/jdwp/jdwp.h
index 6a5d0d1..1735852 100644
--- a/runtime/jdwp/jdwp.h
+++ b/runtime/jdwp/jdwp.h
@@ -288,7 +288,7 @@
   void UnregisterEvent(JdwpEvent* pEvent)
       EXCLUSIVE_LOCKS_REQUIRED(event_list_lock_)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
-  void SendBufferedRequest(uint32_t type, const iovec* iov, int iov_count);
+  void SendBufferedRequest(uint32_t type, const std::vector<iovec>& iov);
 
  public: // TODO: fix privacy
   const JdwpOptions* options_;