Rename FilePath -> base::FilePath in various toplevel directories

ash/system/tray/test_system_tray_delegate.cc

 // 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.
 
 #include "ash/system/tray/test_system_tray_delegate.h"
 
 #include <string>
 
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
@@ skipping 179 matching lines @@
 void TestSystemTrayDelegate::GetCurrentIMEProperties(
     IMEPropertyInfoList* list) {
 }
 
 void TestSystemTrayDelegate::SwitchIME(const std::string& ime_id) {
 }
 
 void TestSystemTrayDelegate::ActivateIMEProperty(const std::string& key) {
 }
 
-void TestSystemTrayDelegate::CancelDriveOperation(const FilePath&) {
+void TestSystemTrayDelegate::CancelDriveOperation(const base::FilePath&) {
 }
 
 void TestSystemTrayDelegate::GetDriveOperationStatusList(
     ash::DriveOperationStatusList*) {
 }
 
 void TestSystemTrayDelegate::GetMostRelevantNetworkIcon(NetworkIconInfo* info,
                                                         bool large) {
 }
 
@@ skipping 119 matching lines @@
 base::Time TestSystemTrayDelegate::GetSessionStartTime() {
   return base::Time();
 }
 
 base::TimeDelta TestSystemTrayDelegate::GetSessionLengthLimit() {
   return base::TimeDelta();
 }
 
 }  // namespace test
 }  // namespace ash