Fix gdata includes.

chrome/browser/chromeos/gdata/gdata_directory_service.h

Index: chrome/browser/chromeos/gdata/gdata_directory_service.h
===================================================================
--- chrome/browser/chromeos/gdata/gdata_directory_service.h	(revision 151830)
+++ chrome/browser/chromeos/gdata/gdata_directory_service.h	(working copy)
@@ -10,20 +10,34 @@
 #include <vector>
 
 #include "base/callback.h"
-#include "base/gtest_prod_util.h"
+#include "base/file_path.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/memory/singleton.h"
 #include "base/memory/weak_ptr.h"
-#include "base/platform_file.h"
-#include "base/synchronization/lock.h"
-#include "chrome/browser/chromeos/gdata/gdata_files.h"
-#include "chrome/browser/chromeos/gdata/gdata_uploader.h"
-#include "chrome/browser/chromeos/gdata/gdata_wapi_parser.h"
-#include "chrome/browser/profiles/profile_keyed_service.h"
-#include "chrome/browser/profiles/profile_keyed_service_factory.h"
+#include "chrome/browser/chromeos/gdata/gdata_errorcode.h"
 
+namespace base {
+class SequencedTaskRunner;
+}
+
 namespace gdata {
 
+struct CreateDBParams;
+class DocumentEntry;
+class GDataEntry;
+class GDataEntryProto;
+class GDataFile;
+class GDataDirectory;
+class ResourceMetadataDB;
+
+typedef std::vector<GDataEntryProto> GDataEntryProtoVector;
+
+// File type on the gdata file system can be either a regular file or
+// a hosted document.
+enum GDataFileType {
+  REGULAR_FILE,
+  HOSTED_DOCUMENT,
+};
+
 // The root directory content origin.
 enum ContentOrigin {
   UNINITIALIZED,