Port storage manager to MD settings.

chrome/app/chromeos_strings.grdp

Index: chrome/app/chromeos_strings.grdp
diff --git a/chrome/app/chromeos_strings.grdp b/chrome/app/chromeos_strings.grdp
index 921e58eb0cae3fdf576aa8ccb99366eaf6e94168..0502f86d794aec5479de645b4e4b2cb147030b22 100644
--- a/chrome/app/chromeos_strings.grdp
+++ b/chrome/app/chromeos_strings.grdp
@@ -1404,6 +1404,12 @@ Press any key to continue exploring.
   <message name="IDS_FLAGS_FULLSCREEN_APP_LIST_DESCRIPTION" desc="Description for the flag to enable experimental fullscreen app list.">
     The app-list will appear as fullscreen mode when it's in touch view mode. This flag does nothing outside of the mode.
   </message>
+  <message name="IDS_FLAGS_MD_STORAGE_MANAGER_NAME" desc="Description for the flag to enable experimental storage manager.">
+    Material Design storage manager
+  </message>
+  <message name="IDS_FLAGS_MD_STORAGE_MANAGER_DESCRIPTION" desc="Description for the flag to enable experimental storage manager.">
+    Enables storage manager in Material Design Settings.
+  </message>
   <message name="IDS_FLAGS_QUICK_UNLOCK_PIN" desc="Title of the flag used to enable quick unlock pin.">
     Quick Unlock (PIN)
   </message>