Rename GDataFileSystem* to DriveFileSystem*

chrome/browser/chromeos/gdata/mock_drive_file_system.cc

Index: chrome/browser/chromeos/gdata/mock_drive_file_system.cc
diff --git a/chrome/browser/chromeos/gdata/mock_gdata_file_system.cc b/chrome/browser/chromeos/gdata/mock_drive_file_system.cc
similarity index 58%
rename from chrome/browser/chromeos/gdata/mock_gdata_file_system.cc
rename to chrome/browser/chromeos/gdata/mock_drive_file_system.cc
index d3e938dd34a57da3ec77aabd665c9cc75f635d90..cd7da1db6f12a0c67158eca7bfbb253956cd9fe0 100644
--- a/chrome/browser/chromeos/gdata/mock_gdata_file_system.cc
+++ b/chrome/browser/chromeos/gdata/mock_drive_file_system.cc
@@ -2,14 +2,14 @@
 // 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/mock_gdata_file_system.h"
+#include "chrome/browser/chromeos/gdata/mock_drive_file_system.h"
 
 namespace gdata {
 
-MockGDataFileSystem::MockGDataFileSystem() {
+MockDriveFileSystem::MockDriveFileSystem() {
 }
 
-MockGDataFileSystem::~MockGDataFileSystem() {
+MockDriveFileSystem::~MockDriveFileSystem() {
 }
 
 }  // namespace gdata