AU: Class to perform delta updates.

src/platform/update_engine/subprocess.h

Index: src/platform/update_engine/subprocess.h
diff --git a/src/platform/update_engine/subprocess.h b/src/platform/update_engine/subprocess.h
index 92064a65aa5bb98f1e5634f1f7affe6a16de41eb..3aa46466b0a05b53bf1a2b7030e21d84bdf197e7 100644
--- a/src/platform/update_engine/subprocess.h
+++ b/src/platform/update_engine/subprocess.h
@@ -29,12 +29,12 @@ class Subprocess {
   typedef void(*ExecCallback)(int return_code, void *p);
 
   // Returns a tag > 0 on success.
-  uint32 Exec(const std::vector<std::string>& cmd,
-              ExecCallback callback,
-              void* p);
+  uint32_t Exec(const std::vector<std::string>& cmd,
+                ExecCallback callback,
+                void* p);
 
   // Used to cancel the callback. The process will still run to completion.
-  void CancelExec(uint32 tag);
+  void CancelExec(uint32_t tag);
 
   // Executes a command synchronously. Returns true on success.
   static bool SynchronousExec(const std::vector<std::string>& cmd,