Add a couple of missing includes.

Review URL: http://codereview.chromium.org/5899001

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@6062 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/counters.h

@@ -28,6 +28,9 @@
 #ifndef V8_COUNTERS_H_
 #define V8_COUNTERS_H_
 
+#include "../include/v8.h"
+#include "allocation.h"
+
 namespace v8 {
 namespace internal {
 

src/v8-counters.h

@@ -28,7 +28,9 @@
 #ifndef V8_V8_COUNTERS_H_
 #define V8_V8_COUNTERS_H_
 
+#include "allocation.h"
 #include "counters.h"
+#include "v8globals.h"
 
 namespace v8 {
 namespace internal {