Perf test to measure loading CDM library.

BUG=337674

Review URL: https://codereview.chromium.org/151283003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@254088 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 81 insertions, 0 deletions

diff --git a/build/all.gyp b/build/all.gyp
index 3bfc588..8342c11 100644
--- a/build/all.gyp
+++ b/build/all.gyp
@@ -479,6 +479,7 @@
           'dependencies': [
             '../cc/cc_tests.gyp:cc_perftests',
             '../chrome/chrome.gyp:chrome',
+            '../chrome/chrome.gyp:load_library_perf_tests',
             '../chrome/chrome.gyp:performance_browser_tests',
             '../chrome/chrome.gyp:performance_ui_tests',
             '../chrome/chrome.gyp:sync_performance_tests',
diff --git a/chrome/browser/load_library_perf_test.cc b/chrome/browser/load_library_perf_test.cc
new file mode 100644
index 0000000..e778af9
--- /dev/null
+++ b/chrome/browser/load_library_perf_test.cc
@@ -0,0 +1,62 @@
+// 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)
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index 853fbbb..006c64e 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -2833,6 +2833,24 @@
         '../third_party/webrtc/tools/tools.gyp:rgba_to_i420_converter',
       ],
     },  # target 'webrtc_test_tools'
+    {
+      # Executable to measure time to load libraries.
+      'target_name': 'load_library_perf_tests',
+      'type': '<(gtest_target_type)',
+      'dependencies': [
+        '../base/base.gyp:test_support_perf',
+        '../testing/gtest.gyp:gtest',
+        '../testing/perf/perf_test.gyp:*',
+        '../third_party/widevine/cdm/widevine_cdm.gyp:widevine_cdm_version_h',
+      ],
+      'sources': [
+        'browser/load_library_perf_test.cc',
+      ],
+      'include_dirs': [
+        '..',
+        '<(SHARED_INTERMEDIATE_DIR)',
+      ],
+    },  # target 'load_library_perf_tests'
   ],
   'conditions': [
     ['OS=="mac"', {