Add File Manager styling feature flag

Bug: 992818
Change-Id: I651778a7898e7994eae70ce1d1e7cab77c36e5c1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1748568
Reviewed-by: Alex Danilo <[email protected]>
Reviewed-by: Noel Gordon <[email protected]>
Reviewed-by: Luciano Pacheco <[email protected]>
Commit-Queue: Austin Tankiang <[email protected]>
Cr-Commit-Position: refs/heads/master@{#685933}
diff --git a/chrome/browser/about_flags.cc b/chrome/browser/about_flags.cc
index cd798c44..5a7542f 100644
--- a/chrome/browser/about_flags.cc
+++ b/chrome/browser/about_flags.cc
@@ -2591,6 +2591,9 @@
     {"file-manager-piex-wasm", flag_descriptions::kFileManagerPiexWasmName,
      flag_descriptions::kFileManagerPiexWasmDescription, kOsCrOS,
      FEATURE_VALUE_TYPE(chromeos::features::kEnableFileManagerPiexWasm)},
+    {"files-ng", flag_descriptions::kFilesNGName,
+     flag_descriptions::kFilesNGDescription, kOsCrOS,
+     FEATURE_VALUE_TYPE(chromeos::features::kFilesNG)},
 #endif  // OS_CHROMEOS
 
 #if defined(OS_WIN)