Move scoped_temp_dir from base to base/files

chrome/browser/process_singleton_mac_unittest.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 <errno.h>
 #include <fcntl.h>
 #include <sys/file.h>
 
 #include "chrome/browser/process_singleton.h"
 
@@ skipping 43 matching lines @@
       return false;
 
     // Someone else has the lock.
     if (errno == EWOULDBLOCK)
       return true;
 
     EXPECT_EQ(EWOULDBLOCK, errno) << "Unexpected error acquiring lock.";
     return false;
   }
 
-  ScopedTempDir temp_dir_;
+  base::ScopedTempDir temp_dir_;
   FilePath lock_path_;
 };
 
 // Test that the base case doesn't blow up.
 TEST_F(ProcessSingletonMacTest, Basic) {
   ProcessSingleton ps(temp_dir_.path());
   EXPECT_FALSE(IsLocked());
   EXPECT_TRUE(ps.Create(ProcessSingleton::NotificationCallback()));
   EXPECT_TRUE(IsLocked());
   ps.Cleanup();
@@ skipping 72 matching lines @@
   ps2.Cleanup();
   EXPECT_FALSE(IsLocked());
 }
 
 // TODO(shess): Test that the lock is released when the process dies.
 // DEATH_TEST?  I don't know.  If the code to communicate between
 // browser processes is ever written, this all would need to be tested
 // more like the other platforms, in which case it would be easy.
 
 }  // namespace