Storage manager: Show overall size information and size of Downloads.

chrome/app/chromeos_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- ChromeOS-specific strings (included from generated_resources.grd).
      Everything in this file is wrapped in <if expr="chromeos">. -->
 <grit-part>
   <message name="IDS_EMPTY_STRING" desc="Empty string, exist only to make code generic. No translation required.">
   </message>
   <!-- Idle logout dialog for retail mode -->
   <message name="IDS_IDLE_LOGOUT_TITLE" desc="Dialog title for the idle logout dialog. Used in retail mode only.">
     Are you still there?
   </message>
@@ skipping 2527 matching lines @@
   </message>
   <message name="IDS_OPTIONS_SETTINGS_TOGGLE_DATA_ROAMING_RESTRICTION" desc="Tooltip for the 'enable data roaming' entry in the Mobile Data drop-down menu indicating why the command is disabled.">
     This setting may only be modified by the owner.
   </message>
   <message name="IDS_OPTIONS_SETTINGS_DISABLE_DATA_ROAMING" desc="Appears in the Mobile Data drop-down menu in the Internet Connections section of the Settings tab.">
     Disable mobile data roaming
   </message>
   <message name="IDS_OPTIONS_SETTINGS_STORAGE_MANAGER_TAB_TITLE" desc="Title for the storage manager tab.">
     Storage
   </message>
+  <message name="IDS_OPTIONS_SETTINGS_STORAGE_ITEM_LABEL_CAPACITY" desc="In storage manager overlay, label for the total size of Chrome OS internal storage.">
+    Capacity
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_STORAGE_ITEM_LABEL_IN_USE" desc="In storage manager overlay, label for the used storage size of Chrome OS internal storage.">
+    In use
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_STORAGE_ITEM_LABEL_AVAILABLE" desc="In storage manager overlay, label for the available storage size of Chrome OS internal storage.">
+    Available
+  </message>
+  <message name="IDS_OPTIONS_SETTINGS_STORAGE_SUBITEM_LABEL_DOWNLOADS" desc="In storage manager overlay, label for the size of Downloads directory.">
+    Downloads
+  </message>
   <message name="IDS_OPTIONS_ACCOUNTS_ALLOW_BWSI_DESCRIPTION" desc="In the Accounts settings tab, the text on the checkbox to allow browse without signing in.">
     Enable Guest browsing
   </message>
   <message name="IDS_OPTIONS_ACCOUNTS_ENABLE_SUPERVISED_USERS" desc="In the Users settings dialog, the text on the checkbox to allow creation and sign-in of supervised users.">
     Enable supervised users
   </message>
   <message name="IDS_OPTIONS_ACCOUNTS_USE_WHITELIST_DESCRIPTION" desc="In the Accounts settings tab, the text on the checkbox to restrict allowed user to a whitelist.">
     Restrict sign-in to the following users:
   </message>
   <message name="IDS_OPTIONS_ACCOUNTS_SHOW_USER_NAMES_ON_SINGIN_DESCRIPTION" desc="In the Accounts settings tab, the text on the checkbox to show user names and pictures on sign-in screen.">
@@ skipping 4063 matching lines @@
   <message name="IDS_ARC_ANDROID_MANAGEMENT_REQUIRED_ERROR" desc="Error message shown when Android management is required for an unmanaged Chrome OS user.">
     Your organization has not enabled Android Apps for your account. Contact your administrator for more information.
   </message>
   <message name="IDS_FLAGS_ENABLE_IME_MENU_NAME" desc="Name of the about: flag for enabling opt-in IME menu.">
     Enable opt-in IME menu
     </message>
   <message name="IDS_FLAGS_ENABLE_IME_MENU_DESCRIPTION" desc="Description of the about: flag for enabling opt-in IME menu.">
     Enable access to the new IME menu in the Language Settings page.
   </message>
 </grit-part>