[CrosDisksClient] Determine device type from DeviceMediaType property sent by cros-disks.

chrome/browser/resources/file_manager/js/file_manager.js

Index: chrome/browser/resources/file_manager/js/file_manager.js
diff --git a/chrome/browser/resources/file_manager/js/file_manager.js b/chrome/browser/resources/file_manager/js/file_manager.js
index 7528075908a78f8edfcb223a84cdd6ff29279a73..6496234486603e113167a9e9a1d37fd9f54b941c 100644
--- a/chrome/browser/resources/file_manager/js/file_manager.js
+++ b/chrome/browser/resources/file_manager/js/file_manager.js
@@ -2157,7 +2157,8 @@ FileManager.prototype = {
     function onMountPointsFound(mountPoints) {
       self.mountPoints_ = mountPoints;
       function onVolumeMetadataFound(volumeMetadata) {
-        if (volumeMetadata.deviceType == "flash") {
+        if (volumeMetadata.deviceType == "usb" ||
+            volumeMetadata.deviceType == "sd") {
           if (self.selection.entries.length != 1 ||
               normalizeAbsolutePath(self.selection.entries[0].fullPath) !=
               normalizeAbsolutePath(volumeMetadata.mountPath)) {