drive: Drop "Drive" from FakeDriveFileSystem and MockDriveFileSystem

chrome/browser/chromeos/drive/drive_system_service_unittest.cc

Index: chrome/browser/chromeos/drive/drive_system_service_unittest.cc
diff --git a/chrome/browser/chromeos/drive/drive_system_service_unittest.cc b/chrome/browser/chromeos/drive/drive_system_service_unittest.cc
index a2d4e8dc3d19123e968eef0b56c6919413ca2cf1..00a9bca9c1e09a6a7ec7083a843609a5784e0a44 100644
--- a/chrome/browser/chromeos/drive/drive_system_service_unittest.cc
+++ b/chrome/browser/chromeos/drive/drive_system_service_unittest.cc
@@ -5,7 +5,7 @@
 #include "chrome/browser/chromeos/drive/drive_system_service.h"
 
 #include "base/message_loop.h"
-#include "chrome/browser/chromeos/drive/mock_drive_file_system.h"
+#include "chrome/browser/chromeos/drive/mock_file_system.h"
 #include "chrome/browser/chromeos/drive/test_util.h"
 #include "chrome/browser/google_apis/dummy_drive_service.h"
 #include "chrome/test/base/testing_profile.h"
@@ -24,7 +24,7 @@ class DriveSystemServiceTest : public testing::Test {
 
   virtual void SetUp() OVERRIDE {
     profile_.reset(new TestingProfile);
-    file_system_ = new MockDriveFileSystem;
+    file_system_ = new MockFileSystem;
     system_service_ = new DriveSystemService(profile_.get(),
                                              new google_apis::DummyDriveService,
                                              base::FilePath(),
@@ -44,7 +44,7 @@ class DriveSystemServiceTest : public testing::Test {
 
   scoped_ptr<TestingProfile> profile_;
 
-  MockDriveFileSystem* file_system_;
+  MockFileSystem* file_system_;
   DriveSystemService* system_service_;
 };