Switch over to the google3 unix_file File*.

I also moved macros.h to base/macros.h to ease google3 porting, at
the expense of a larger than necessary change. (I learned my lesson,
though, and didn't make the equivalent base/logging.h change.)

I'm not sure whether we want to keep the unix_file MappedFile given
our existing MemMap, but it's easier to bring it over and then remove
it (and possibly revert the removal) than to bring it over later.

Change-Id: Id50a66faa5ab17b9bc936cc9043dbc26f791f0ca
diff --git a/src/jdwp/jdwp_handler.cc b/src/jdwp/jdwp_handler.cc
index 88677d5..2a2bde2 100644
--- a/src/jdwp/jdwp_handler.cc
+++ b/src/jdwp/jdwp_handler.cc
@@ -26,6 +26,7 @@
  */
 
 #include "atomic.h"
+#include "base/macros.h"
 #include "debugger.h"
 #include "jdwp/jdwp_priv.h"
 #include "jdwp/jdwp_handler.h"
@@ -33,7 +34,6 @@
 #include "jdwp/jdwp_constants.h"
 #include "jdwp/jdwp_expand_buf.h"
 #include "logging.h"
-#include "macros.h"
 #include "stringprintf.h"
 
 #include <stdlib.h>