Use resolveIsolatedEntries in the separated new Gallery.app.

ui/file_manager/file_manager_resources.grd

Index: ui/file_manager/file_manager_resources.grd
diff --git a/ui/file_manager/file_manager_resources.grd b/ui/file_manager/file_manager_resources.grd
index ed1fa98b865233db1b599894fa2976b28bde5141..18eb2343ab9739c7aaf1dffbe6fedb97a6760a4b 100644
--- a/ui/file_manager/file_manager_resources.grd
+++ b/ui/file_manager/file_manager_resources.grd
@@ -34,6 +34,9 @@
       <include name="IDR_FILE_MANAGER_VOLUME_MANAGER_JS" file="file_manager/background/js/volume_manager.js" flattenhtml="false" type="BINDATA" />
       <include name="IDR_FILE_MANAGER_VOLUME_MANAGER_COMMON_JS" file="file_manager/common/js/volume_manager_common.js" flattenhtml="false" type="BINDATA" />
 
+      <!-- Scripts referred by the gallery app. -->
+      <include name="IDR_FILE_MANAGER_FILE_TYPE_JS" file="file_manager/foreground/js/file_type.js" flattenhtml="false" type="BINDATA" />
+
       <!-- Scripts required by the metadata parser worker. -->
       <include name="IDR_FILE_MANAGER_UTIL" file="file_manager/common/js/util.js" type="BINDATA" />
       <include name="IDR_FILE_MANAGER_METADATA_DISPATCHER" file="file_manager/foreground/js/metadata/metadata_dispatcher.js" type="BINDATA" />