Revert 254088 "Perf test to measure loading CDM library."

trunk/src/chrome/browser/load_library_perf_test.cc

-// 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.
-
-#include "base/files/file_path.h"
-#include "base/path_service.h"
-#include "base/scoped_native_library.h"
-#include "base/strings/utf_string_conversions.h"
-#include "base/time/time.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "testing/perf/perf_test.h"
-#include "widevine_cdm_version.h"  //  In SHARED_INTERMEDIATE_DIR.
-
-
-void MeasureTimeToLoadNativeLibrary(const base::FilePath& library_name) {
-  base::FilePath output_dir;
-  ASSERT_TRUE(PathService::Get(base::DIR_MODULE, &output_dir));
-  base::FilePath library_path = output_dir.Append(library_name);
-  std::string error;
-  base::TimeTicks start = base::TimeTicks::HighResNow();
-  base::NativeLibrary native_library =
-      base::LoadNativeLibrary(library_path, &error);
-  double delta = (base::TimeTicks::HighResNow() - start).InMillisecondsF();
-  ASSERT_TRUE(native_library) << "Error loading library:\n" << error;
-  base::UnloadNativeLibrary(native_library);
-  perf_test::PrintResult("time_to_load_library",
-                         "",
-                         library_name.AsUTF8Unsafe(),
-                         delta,
-                         "ms",
-                         true);
-}
-
-// Use the base name of the library to dynamically get the platform specific
-// name. See base::GetNativeLibraryName() for details.
-void MeasureTimeToLoadNativeLibraryByBaseName(
-    const std::string& base_library_name) {
-  MeasureTimeToLoadNativeLibrary(base::FilePath::FromUTF16Unsafe(
-      base::GetNativeLibraryName(base::ASCIIToUTF16(base_library_name))));
-}
-
-#if defined(ENABLE_PEPPER_CDMS)
-#if defined(WIDEVINE_CDM_AVAILABLE)
-TEST(LoadCDMPerfTest, Widevine) {
-  MeasureTimeToLoadNativeLibrary(
-      base::FilePath(FILE_PATH_LITERAL(kWidevineCdmFileName)));
-}
-
-TEST(LoadCDMPerfTest, WidevineAdapter) {
-  MeasureTimeToLoadNativeLibrary(
-      base::FilePath(FILE_PATH_LITERAL(kWidevineCdmAdapterFileName)));
-}
-#endif  // defined(WIDEVINE_CDM_AVAILABLE)
-
-TEST(LoadCDMPerfTest, ExternalClearKey) {
-  MeasureTimeToLoadNativeLibraryByBaseName("clearkeycdm");
-}
-
-TEST(LoadCDMPerfTest, ExternalClearKeyAdapter) {
-  MeasureTimeToLoadNativeLibraryByBaseName("clearkeycdmadapter");
-}
-#endif  // defined(ENABLE_PEPPER_CDMS)