Add file_manager/video_player to Buildbot compilation.

BUG=444485
TEST=GYP_GENERATORS=ninja tools/gyp/gyp --depth . third_party/closure_compiler/compiled_resources.gyp && ninja -C out/Default

Review URL: https://codereview.chromium.org/906153002

Cr-Commit-Position: refs/heads/master@{#315255}

third_party/closure_compiler/compiled_resources.gyp

@@ -21,6 +21,7 @@
         '../../ui/file_manager/file_manager/foreground/js/metadata/compiled_resources.gyp:*',
         '../../ui/file_manager/gallery/js/compiled_resources.gyp:*',
         '../../ui/file_manager/image_loader/compiled_resources.gyp:*',
+        '../../ui/file_manager/video_player/js/compiled_resources.gyp:*',
         '../../ui/webui/resources/js/chromeos/compiled_resources.gyp:*',
         '../../ui/webui/resources/js/chromeos/compiled_resources.gyp:*',
         '../../ui/webui/resources/js/compiled_resources.gyp:*',