Move scoped_temp_dir from base to base/files

chrome/installer/util/self_cleaning_temp_dir.h

 // Copyright (c) 2011 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_INSTALLER_UTIL_SELF_CLEANING_TEMP_DIR_H_
 #define CHROME_INSTALLER_UTIL_SELF_CLEANING_TEMP_DIR_H_
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/gtest_prod_util.h"
 
 namespace installer {
 
 // A helper class for managing a temporary directory.  In relation to
-// ScopedTempDir, this class additionally cleans up all non-empty parent
+// base::ScopedTempDir, this class additionally cleans up all non-empty parent
 // directories of the temporary directory that are created by an instance.
 class SelfCleaningTempDir {
  public:
   typedef FilePath::StringType StringType;
 
   SelfCleaningTempDir();
 
   // Performs a Delete().
   ~SelfCleaningTempDir();
 
@@ skipping 20 matching lines @@
   FilePath temp_dir_;
 
   FRIEND_TEST_ALL_PREFIXES(SelfCleaningTempDirTest, TopLevel);
   FRIEND_TEST_ALL_PREFIXES(SelfCleaningTempDirTest, TopLevelPlusOne);
   DISALLOW_COPY_AND_ASSIGN(SelfCleaningTempDir);
 };
 
 }  // namespace installer
 
 #endif  // CHROME_INSTALLER_UTIL_SELF_CLEANING_TEMP_DIR_H_