Move ScopedFILE to base namespace and scoped_file.h

base/files/scoped_file.h

Index: base/files/scoped_file.h
diff --git a/base/files/scoped_file.h b/base/files/scoped_file.h
index f5d7ecde7bf7b3cf18c927e301643351770fa12b..106f6ad94bf7f3b0e01799a61cb8dfcab914dd95 100644
--- a/base/files/scoped_file.h
+++ b/base/files/scoped_file.h
@@ -9,6 +9,7 @@
 
 #include "base/base_export.h"
 #include "base/logging.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/scoped_generic.h"
 #include "build/build_config.h"
 
@@ -25,8 +26,18 @@ struct BASE_EXPORT ScopedFDCloseTraits {
 };
 #endif
 
+// Functor for |ScopedFILE| (below).
+struct ScopedFILECloser {
+  inline void operator()(FILE* x) const {
+    if (x)
+      fclose(x);
+  }
+};
+
 }  // namespace internal
 
+// -----------------------------------------------------------------------------
+
 #if defined(OS_POSIX)
 // A low-level Posix file descriptor closer class. Use this when writing
 // platform-specific code, especially that does non-file-like things with the
@@ -42,6 +53,9 @@ struct BASE_EXPORT ScopedFDCloseTraits {
 typedef ScopedGeneric<int, internal::ScopedFDCloseTraits> ScopedFD;
 #endif
 
+// Automatically closes |FILE*|s.
+typedef scoped_ptr<FILE, internal::ScopedFILECloser> ScopedFILE;
+
 }  // namespace base
 
 #endif  // BASE_FILES_SCOPED_FILE_H_