Convert //chrome/installer from scoped_ptr to std::unique_ptr

chrome/installer/util/work_item_list.h

Index: chrome/installer/util/work_item_list.h
diff --git a/chrome/installer/util/work_item_list.h b/chrome/installer/util/work_item_list.h
index 62351b88e70efb7dd0732ac04f0d08c7d9edf8c8..983ad0c53fa1733447ed13aa5d107e291cd0ec99 100644
--- a/chrome/installer/util/work_item_list.h
+++ b/chrome/installer/util/work_item_list.h
@@ -9,11 +9,11 @@
 #include <stdint.h>
 
 #include <list>
+#include <memory>
 #include <string>
 #include <vector>
 
 #include "base/callback_forward.h"
-#include "base/memory/scoped_ptr.h"
 #include "chrome/installer/util/work_item.h"
 
 namespace base {