Added proper extensions for hosted documents.

chrome/browser/chromeos/gdata/gdata_file_system.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_file_system.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/json/json_writer.h"
@@ skipping 146 matching lines @@
   DCHECK(doc->is_hosted_document() || doc->is_file());
   GDataFile* file = new GDataFile(parent);
   // Check if this entry is a true file, or...
   if (doc->is_file()) {
     file->original_file_name_ = UTF16ToUTF8(doc->filename());
     file->file_name_ =
         EscapeFileName(file->original_file_name_);
     file->file_info_.size = doc->file_size();
     file->file_md5_ = doc->file_md5();
   } else {
+    DCHECK(doc->is_hosted_document());
     // ... a hosted document.
     file->original_file_name_ = UTF16ToUTF8(doc->title());
     // Attach .g<something> extension to hosted documents so we can special
     // case their handling in UI.
     // TODO(zelidrag): Figure out better way how to pass entry info like kind
     // to UI through the File API stack.
     file->file_name_ = EscapeFileName(
-        base::StringPrintf("%s.g%s",
-                           file->original_file_name_.c_str(),
-                           doc->GetEntryKindText().c_str()));
+        file->original_file_name_ + doc->GetHostedDocumentExtension());
     // We don't know the size of hosted docs and it does not matter since
     // is has no effect on the quota.
     file->file_info_.size = 0;
   }
   file->kind_ = doc->kind();
   const Link* self_link = doc->GetLinkByType(Link::SELF);
   if (self_link)
     file->self_url_ = self_link->href();
   file->content_url_ = doc->content_url();
   file->content_mime_type_ = doc->content_mime_type();
@@ skipping 667 matching lines @@
 
 GDataFileSystemFactory::~GDataFileSystemFactory() {
 }
 
 ProfileKeyedService* GDataFileSystemFactory::BuildServiceInstanceFor(
     Profile* profile) const {
   return new GDataFileSystem(profile);
 }
 
 }  // namespace gdata