Files.app: Add a new column in table view to reflect cloud import status.

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>
   <message name="IDS_CHROMEBOOK" desc="The localized name for Chromebook.">
     Chromebook
   </message>
   <message name="IDS_CHROMEBOX" desc="The localized name for Chromebox">
@@ skipping 160 matching lines @@
   <message name="IDS_FILE_BROWSER_SHORTCUT_META" desc="[Meta] key name to use in shortcuts descriptions. Shouldn't be translated in many languages actually.">
     Meta
   </message>
   <message name="IDS_FILE_BROWSER_SHORTCUT_SPACE" desc="[Space] key name to use in shortcuts descriptions. Shouldn't be translated in many languages actually.">
     Space
   </message>
   <message name="IDS_FILE_BROWSER_SHORTCUT_ENTER" desc="[Enter] key name to use in shortcuts descriptions. Shouldn't be translated in many languages actually.">
     Enter
   </message>
 
+  <message name="IDS_FILE_BROWSER_STATUS_COLUMN_LABEL" desc="Status column label.">

[mtomasz, 2015/01/14 00:34:34]

nit: This may not be clear enough for translators. Can we add example statuses
to the description?

[Ben Kwa, 2015/01/14 16:19:33]

Done.

+    Status
+  </message>
   <message name="IDS_FILE_BROWSER_TYPE_COLUMN_LABEL" desc="Type column label.">
     Type
   </message>
   <message name="IDS_FILE_BROWSER_DATE_COLUMN_LABEL" desc="Date column label.">
     Date modified
   </message>
   <message name="IDS_FILE_BROWSER_OFFLINE_COLUMN_LABEL" desc="Available offline column label.">
     Available offline
   </message>
   <message name="IDS_FILE_BROWSER_ERROR_CREATING_FOLDER" desc="Message displayed when we can't create a folder.">
@@ skipping 5792 matching lines @@
   <message name="IDS_SET_TIME_BUTTON_CLOSE" desc="Text for the button to close the window.">
     Done
   </message>
   <message name="IDS_SET_TIME_DATE_LABEL" desc="Label for the date input element.">
     System date
   </message>
   <message name="IDS_SET_TIME_TIME_LABEL" desc="Label for the time input element.">
     System time
   </message>
 </grit-part>