content: Use stl utilities from the base namespace

content/browser/fileapi/copy_or_move_operation_delegate_unittest.cc

 // Copyright 2013 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 <stddef.h>
 #include <stdint.h>
 #include <map>
 #include <queue>
 #include <utility>
 
@@ skipping 311 matching lines @@
       directories.pop();
       ASSERT_EQ(base::File::FILE_OK, ReadDirectory(dir, &entries));
       for (size_t i = 0; i < entries.size(); ++i) {
         FileSystemURL url = file_system_context_->CreateCrackedFileSystemURL(
             dir.origin(),
             dir.mount_type(),
             dir.virtual_path().Append(entries[i].name));
         base::FilePath relative;
         root.virtual_path().AppendRelativePath(url.virtual_path(), &relative);
         relative = relative.NormalizePathSeparators();
-        ASSERT_TRUE(ContainsKey(test_case_map, relative));
+        ASSERT_TRUE(base::ContainsKey(test_case_map, relative));
         if (entries[i].is_directory) {
           EXPECT_TRUE(test_case_map[relative]->is_directory);
           directories.push(url);
         } else {
           EXPECT_FALSE(test_case_map[relative]->is_directory);
           EXPECT_TRUE(FileExists(url, test_case_map[relative]->data_file_size));
         }
         test_case_map.erase(relative);
       }
     }
@@ skipping 525 matching lines @@
 
   base::File::Error error = base::File::FILE_ERROR_FAILED;
   base::RunLoop run_loop;
   helper.Run(base::Bind(&AssignAndQuit, &run_loop, &error));
   run_loop.Run();
 
   EXPECT_EQ(base::File::FILE_ERROR_ABORT, error);
 }
 
 }  // namespace content