Remove root resource id aliasing from DriveResourceMetadata.

chrome/browser/chromeos/drive/drive_file_system_util.h

Index: chrome/browser/chromeos/drive/drive_file_system_util.h
diff --git a/chrome/browser/chromeos/drive/drive_file_system_util.h b/chrome/browser/chromeos/drive/drive_file_system_util.h
index fb41819c1266dc40eefc109ce48eac53e5de4080..bc080c55a6f2130b1df0a0ba9945107ffe91e8db 100644
--- a/chrome/browser/chromeos/drive/drive_file_system_util.h
+++ b/chrome/browser/chromeos/drive/drive_file_system_util.h
@@ -9,6 +9,7 @@
 
 #include "base/callback_forward.h"
 #include "base/platform_file.h"
+#include "chrome/browser/chromeos/drive/drive.pb.h"
 #include "chrome/browser/chromeos/drive/drive_file_error.h"
 #include "chrome/browser/google_apis/gdata_errorcode.h"
 #include "googleurl/src/gurl.h"
@@ -85,6 +86,12 @@ const base::FilePath& GetDriveMountPointPath();
 // implementation and is not supposed to be sent to the server.
 bool IsSpecialResourceId(const std::string& resource_id);
 
+// Returns a DriveEntryProto for "/drive/root" directory.
+DriveEntryProto CreateMyDriveRootEntry(const std::string& root_resource_id);
+
+// Returns a DriveEntryProto for "/drive/other" directory.
+DriveEntryProto CreateOtherDirEntry();
+
 // Returns the Drive mount path as string.
 const std::string& GetDriveMountPointPathAsString();