drive: Drop "Drive" from FakeDriveFileSystem and MockDriveFileSystem

chrome/browser/chromeos/drive/mock_file_system.h

Index: chrome/browser/chromeos/drive/mock_file_system.h
diff --git a/chrome/browser/chromeos/drive/mock_drive_file_system.h b/chrome/browser/chromeos/drive/mock_file_system.h
similarity index 94%
rename from chrome/browser/chromeos/drive/mock_drive_file_system.h
rename to chrome/browser/chromeos/drive/mock_file_system.h
index 149d0500029914cda76bdd5989d64b0f285747b1..b6ccf0173be44efa492e269a512db653e4b12893 100644
--- a/chrome/browser/chromeos/drive/mock_drive_file_system.h
+++ b/chrome/browser/chromeos/drive/mock_file_system.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_CHROMEOS_DRIVE_MOCK_DRIVE_FILE_SYSTEM_H_
-#define CHROME_BROWSER_CHROMEOS_DRIVE_MOCK_DRIVE_FILE_SYSTEM_H_
+#ifndef CHROME_BROWSER_CHROMEOS_DRIVE_MOCK_FILE_SYSTEM_H_
+#define CHROME_BROWSER_CHROMEOS_DRIVE_MOCK_FILE_SYSTEM_H_
 
 #include <string>
 
@@ -15,10 +15,10 @@ namespace drive {
 class FileSystemObserver;
 
 // Mock for DriveFileSystemInterface.
-class MockDriveFileSystem : public DriveFileSystemInterface {
+class MockFileSystem : public DriveFileSystemInterface {
  public:
-  MockDriveFileSystem();
-  virtual ~MockDriveFileSystem();
+  MockFileSystem();
+  virtual ~MockFileSystem();
 
   // DriveFileSystemInterface overrides.
   MOCK_METHOD0(Initialize, void());
@@ -124,4 +124,4 @@ class MockDriveFileSystem : public DriveFileSystemInterface {
 
 }  // namespace drive
 
-#endif  // CHROME_BROWSER_CHROMEOS_DRIVE_MOCK_DRIVE_FILE_SYSTEM_H_
+#endif  // CHROME_BROWSER_CHROMEOS_DRIVE_MOCK_FILE_SYSTEM_H_