Revert of Switch to standard integer types in sandbox/.

sandbox/win/src/sharedmem_ipc_client.h

Index: sandbox/win/src/sharedmem_ipc_client.h
diff --git a/sandbox/win/src/sharedmem_ipc_client.h b/sandbox/win/src/sharedmem_ipc_client.h
index 67fd0635970f15cd45270141f146036756b7c983..9eec74ac8523ced825032bbe3f0a2f55afef489c 100644
--- a/sandbox/win/src/sharedmem_ipc_client.h
+++ b/sandbox/win/src/sharedmem_ipc_client.h
@@ -4,9 +4,6 @@
 
 #ifndef SANDBOX_SRC_SHAREDMEM_IPC_CLIENT_H__
 #define SANDBOX_SRC_SHAREDMEM_IPC_CLIENT_H__
-
-#include <stddef.h>
-#include <stdint.h>
 
 #include "sandbox/win/src/crosscall_params.h"
 #include "sandbox/win/src/sandbox.h"
@@ -84,7 +81,7 @@
   // the client waits on the pong event for the IPC answer back
   HANDLE pong_event;
   // the IPC unique identifier
-  uint32_t ipc_tag;
+  uint32 ipc_tag;
 };
 
 struct IPCControl {