Add storage manager overlay on Settings.

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 1275 matching lines @@
   </message>
   <message name="IDS_FLAGS_WAKE_ON_PACKETS_DESCRIPTION" desc="Description for the flag to enable wake on packets.">
     Enables waking the device based on the receipt of some network packets.
   </message>
   <message name="IDS_FLAGS_FULLSCREEN_APP_LIST_NAME" desc="Description for the flag to enable experimental fullscreen app list.">
     Enables the fullscreen app-list in touch-view mode.
   </message>
   <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_STORAGE_MANAGER_NAME" desc="Description for the flag to enable experimental storage manager.">
+    Storage manager
+  </message>
+  <message name="IDS_FLAGS_STORAGE_MANAGER_DESCRIPTION" desc="Description for the flag to enable experimental storage manager.">
+    Enables storage manager to manage local storage.
+  </message>
   <message name="IDS_OFFERS_CONSENT_INFOBAR_LABEL_LEARN_MORE" desc="Text of the Learn More link in the echo dialog.">
     Learn More
   </message>
   <message name="IDS_OFFERS_CONSENT_INFOBAR_ENABLE_BUTTON" desc="Enable button label.">
     Allow
   </message>
   <message name="IDS_OFFERS_CONSENT_INFOBAR_DISABLE_BUTTON" desc="Disable button label.">
     Deny
   </message>
   <message name="IDS_NETWORK_CONFIG_ERROR_INCORRECT_PASSWORD" desc="Error for network configuration: Incorrect password.">
@@ skipping 743 matching lines @@
   </message>
   <message name="IDS_OPTIONS_DEVICE_GROUP_DESCRIPTION">
     Change settings specific to your device and peripherals.
   </message>
   <message name="IDS_OPTIONS_DEVICE_GROUP_KEYBOARD_SECTION">
     Keyboard:
   </message>
   <message name="IDS_OPTIONS_DEVICE_GROUP_KEYBOARD_SETTINGS_BUTTON_TITLE">
     Keyboard settings
   </message>
+  <message name="IDS_OPTIONS_DEVICE_GROUP_STORAGE_MANAGER_BUTTON_TITLE">
+    Storage
+  </message>
   <message name="IDS_OPTIONS_DEVICE_GROUP_POINTER_SECTION">
     Pointer speed:
   </message>
   <message name="IDS_OPTIONS_SETTINGS_MOUSE_SPEED_DESCRIPTION">
     Mouse speed:
   </message>
   <message name="IDS_OPTIONS_SETTINGS_TOUCHPAD_SPEED_DESCRIPTION">
     Touchpad speed:
   </message>
   <message name="IDS_OPTIONS_DEVICE_GROUP_POINTER_SETTINGS_BUTTON_TITLE">
@@ skipping 448 matching lines @@
   </message>
   <message name="IDS_OPTIONS_SETTINGS_MANAGED_NETWORK" desc="Help text to show in the bubble shown on click of the controlled setting indicator on the internet settings page.">
     This network is configured by your administrator.
   </message>
   <message name="IDS_OPTIONS_SETTINGS_USE_SHARED_PROXIES" desc="In the settings tab, the text next to the checkbox for allowing proxy settings for shared networks.">
     Allow proxies for shared networks
   </message>
   <message name="IDS_OPTIONS_SETTINGS_ENABLE_DATA_ROAMING" desc="Appears in the Mobile Data drop-down menu in the Internet Connections section of the Settings tab.">
     Allow mobile data roaming
   </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.">
+  <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_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>