Plugins: Move Prerender tests to PPAPI and some refactoring.

ppapi/shared_impl/test_harness_utils.h

-// Copyright 2014 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 PPAPI_TESTS_TEST_HARNESS_UTILS_H_
-#define PPAPI_TESTS_TEST_HARNESS_UTILS_H_
-
-#include <string>
-#include "base/files/file_path.h"
-#include "ppapi/shared_impl/ppapi_shared_export.h"
-
-// This file specifies utility functions used in Pepper testing in
-// browser_tests and content_browsertests.
-
-namespace base {
-class CommandLine;
-}
-
-namespace ppapi {
-
-// Strips prefixes used to annotate tests from a test name.
-std::string PPAPI_SHARED_EXPORT StripTestPrefixes(const std::string& test_name);
-
-// Returns a platform-specific filename relative to the chrome executable.
-base::FilePath::StringType PPAPI_SHARED_EXPORT GetTestLibraryName();
-
-} // namespace ppapi
-
-#endif  // PPAPI_TESTS_TEST_HARNESS_UTILS_H_