This adds some GData private API to the file manager

chrome/browser/chromeos/gdata/gdata_file_system.cc

Index: chrome/browser/chromeos/gdata/gdata_file_system.cc
diff --git a/chrome/browser/chromeos/gdata/gdata_file_system.cc b/chrome/browser/chromeos/gdata/gdata_file_system.cc
index ac0ff357b4452e7920253da3aaf3d80a376020bf..17eb195e9cb1b54f4e8e65537d26db7de96c9633 100644
--- a/chrome/browser/chromeos/gdata/gdata_file_system.cc
+++ b/chrome/browser/chromeos/gdata/gdata_file_system.cc
@@ -188,13 +188,23 @@ GDataFileBase* GDataFile::FromDocumentEntry(GDataDirectory* parent,
   file->file_info_.last_modified = doc->updated_time();
   file->file_info_.last_accessed = doc->updated_time();
   file->file_info_.creation_time = doc->published_time();
+
+  const Link* thumbnail_link = doc->GetLinkByType(Link::THUMBNAIL);
+  if (thumbnail_link)
+    file->thumbnail_url_ = thumbnail_link->href();
+
+  // TODO(gspencer): Add support for reading pinned state from the cache,
+  // when the cache code is done.
+
   return file;
 }
 
 // GDataFile class implementation.
 
 GDataFile::GDataFile(GDataDirectory* parent)
-    : GDataFileBase(parent), kind_(gdata::DocumentEntry::UNKNOWN) {
+    : GDataFileBase(parent),
+      kind_(gdata::DocumentEntry::UNKNOWN),
+      pinned_state_(PINNED_STATE_NONE) {
   DCHECK(parent);
 }