Change base/file_utils.h includes to base/files/file_utils.h in chrome_elf/ and components/

Also fix the formatting of chrome_elf/OWNERS

Review URL: https://codereview.chromium.org/546733002

Cr-Commit-Position: refs/heads/master@{#294245}
diff --git a/components/visitedlink/test/visitedlink_unittest.cc b/components/visitedlink/test/visitedlink_unittest.cc
index 6364318..747c128 100644
--- a/components/visitedlink/test/visitedlink_unittest.cc
+++ b/components/visitedlink/test/visitedlink_unittest.cc
@@ -6,7 +6,7 @@
 #include <string>
 #include <vector>
 
-#include "base/file_util.h"
+#include "base/files/file_util.h"
 #include "base/memory/shared_memory.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"