Clarify and separate the concept of "Drive path" and "Filesystem relative path".

chrome/browser/chromeos/extensions/file_manager/event_router.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_EVENT_ROUTER_H_
 #define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_EVENT_ROUTER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 78 matching lines @@
   // drive::JobListObserver overrides.
   virtual void OnJobAdded(const drive::JobInfo& job_info) OVERRIDE;
   virtual void OnJobUpdated(const drive::JobInfo& job_info) OVERRIDE;
   virtual void OnJobDone(const drive::JobInfo& job_info,
                          drive::FileError error) OVERRIDE;
 
   // drive::DriveServiceObserver overrides.
   virtual void OnRefreshTokenInvalid() OVERRIDE;
 
   // drive::FileSystemObserver overrides.
-  virtual void OnDirectoryChanged(
-      const base::FilePath& directory_path) OVERRIDE;
-  virtual void OnDriveSyncError(
-      drive::file_system::DriveSyncErrorType type,
-      const base::FilePath& file_path) OVERRIDE;
+  virtual void OnDirectoryChanged(const base::FilePath& drive_path) OVERRIDE;
+  virtual void OnDriveSyncError(drive::file_system::DriveSyncErrorType type,
+                                const base::FilePath& drive_path) OVERRIDE;
 
   // VolumeManagerObserver overrides.
   virtual void OnDiskAdded(
       const chromeos::disks::DiskMountManager::Disk& disk,
       bool mounting) OVERRIDE;
   virtual void OnDiskRemoved(
       const chromeos::disks::DiskMountManager::Disk& disk) OVERRIDE;
   virtual void OnDeviceAdded(const std::string& device_path) OVERRIDE;
   virtual void OnDeviceRemoved(const std::string& device_path) OVERRIDE;
   virtual void OnVolumeMounted(chromeos::MountError error_code,
@@ skipping 55 matching lines @@
 
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate the weak pointers before any other members are destroyed.
   base::WeakPtrFactory<EventRouter> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(EventRouter);
 };
 
 }  // namespace file_manager
 
 #endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_EVENT_ROUTER_H_