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/feedback/feedback_common.h b/components/feedback/feedback_common.h
index 6d97e716..a95301d 100644
--- a/components/feedback/feedback_common.h
+++ b/components/feedback/feedback_common.h
@@ -8,7 +8,7 @@
 #include <map>
 #include <string>
 
-#include "base/file_util.h"
+#include "base/files/file_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"