Use bionic's dlmalloc 2.8.5.

Also fix free space computations for DDMS.

Change-Id: Icbc045b5461af89a0516f37f01acaaa815205348
diff --git a/src/jdwp/jdwp_main.cc b/src/jdwp/jdwp_main.cc
index beec7af..4b442db 100644
--- a/src/jdwp/jdwp_main.cc
+++ b/src/jdwp/jdwp_main.cc
@@ -99,7 +99,7 @@
       attach_lock_("JDWP attach lock"),
       attach_cond_("JDWP attach condition variable"),
       last_activity_time_ms_(0),
-      serial_lock_("JDWP serial lock"),
+      serial_lock_("JDWP serial lock", kJdwpSerialLock),
       request_serial_(0x10000000),
       event_serial_(0x20000000),
       event_list_lock_("JDWP event list lock"),