gdata: Add requestDirectoryRefresh to file_browser_private.

chrome/browser/chromeos/gdata/gdata_files.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/chromeos/gdata/gdata_files.h"
 
 #include "base/utf_string_conversions.h"
 #include "base/platform_file.h"
 #include "base/stringprintf.h"
 #include "base/string_util.h"
@@ skipping 366 matching lines @@
     root_->RemoveEntryFromResourceMap(entry);
 
   // Then delete it from tree.
   child_files_.erase(file_name);
   child_directories_.erase(file_name);
 
   return true;
 }
 
 void GDataDirectory::RemoveChildren() {
-  // Remove child files first.
+  RemoveChildFiles();
+  RemoveChildDirectories();
+}
+
+void GDataDirectory::RemoveChildFiles() {
   for (GDataFileCollection::const_iterator iter = child_files_.begin();
        iter != child_files_.end(); ++iter) {
     if (root_)
       root_->RemoveEntryFromResourceMap(iter->second);
   }
   STLDeleteValues(&child_files_);
   child_files_.clear();
+}
 
+void GDataDirectory::RemoveChildDirectories() {
   for (GDataDirectoryCollection::iterator iter = child_directories_.begin();
        iter != child_directories_.end(); ++iter) {
     GDataDirectory* dir = iter->second;
     // Remove directories recursively.
     dir->RemoveChildren();
     if (root_)
       root_->RemoveEntryFromResourceMap(dir);
   }
   STLDeleteValues(&child_directories_);
   child_directories_.clear();
@@ skipping 482 matching lines @@
     }
 
     FromProto(*proto.get());
     set_origin(FROM_CACHE);
     set_refresh_time(base::Time::Now());
   }
   return ok;
 }
 
 }  // namespace gdata