[content shell] move code common to several processes to a common dir

content/shell/shell_test_configuration.h

-// Copyright (c) 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.
-
-#ifndef CONTENT_SHELL_SHELL_TEST_CONFIGURATION_H_
-#define CONTENT_SHELL_SHELL_TEST_CONFIGURATION_H_
-
-#include <string>
-
-#include "base/files/file_path.h"
-#include "googleurl/src/gurl.h"
-
-namespace content {
-
-struct ShellTestConfiguration {
-  ShellTestConfiguration();
-  ~ShellTestConfiguration();
-
-  // The current working directory.
-  base::FilePath current_working_directory;
-
-  // The temporary directory of the system.
-  base::FilePath temp_path;
-
-  // The URL of the current layout test.
-  GURL test_url;
-
-  // True if pixel tests are enabled.
-  bool enable_pixel_dumping;
-
-  // The layout test timeout in milliseconds.
-  int layout_test_timeout;
-
-  // True if tests can open external URLs
-  bool allow_external_pages;
-
-  // The expected MD5 hash of the pixel results.
-  std::string expected_pixel_hash;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_SHELL_SHELL_TEST_CONFIGURATION_H_