Switch to standard integer types in ppapi/.

BUG=138542
[email protected]
NOPRESUBMIT=true

Review URL: https://codereview.chromium.org/1548813002

Cr-Commit-Position: refs/heads/master@{#366718}
diff --git a/ppapi/proxy/file_ref_resource.h b/ppapi/proxy/file_ref_resource.h
index 59e7b7c9..2ed2cc7 100644
--- a/ppapi/proxy/file_ref_resource.h
+++ b/ppapi/proxy/file_ref_resource.h
@@ -5,9 +5,11 @@
 #ifndef PPAPI_PROXY_FILE_REF_RESOURCE_H_
 #define PPAPI_PROXY_FILE_REF_RESOURCE_H_
 
+#include <stdint.h>
+
 #include <string>
 
-#include "base/basictypes.h"
+#include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_resource.h"