Remove some needless base:: from base::File.

base/files/file.h

Index: base/files/file.h
diff --git a/base/files/file.h b/base/files/file.h
index 49ffb929c41f6118b4dab7c627af91c7db9d37c9..f50a8b198a896ac05d92ec98cd85734862fb2465 100644
--- a/base/files/file.h
+++ b/base/files/file.h
@@ -150,13 +150,13 @@ class BASE_EXPORT File {
     bool is_symbolic_link;
 
     // The last modified time of a file.
-    base::Time last_modified;
+    Time last_modified;
 
     // The last accessed time of a file.
-    base::Time last_accessed;
+    Time last_accessed;
 
     // The creation time of a file.
-    base::Time creation_time;
+    Time creation_time;
   };
 
   File();