Fix base::GetNativeLibraryName() for Mac.

media/cdm/external_clear_key_test_helper.cc

 // Copyright 2015 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 "media/cdm/external_clear_key_test_helper.h"
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
+#include "base/native_library.h"
 #include "base/path_service.h"
-#include "build/build_config.h"
 #include "media/cdm/api/content_decryption_module.h"
 #include "media/cdm/cdm_paths.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media {
 
 // INITIALIZE_CDM_MODULE is a macro in api/content_decryption_module.h.
 // However, we need to pass it as a string to GetFunctionPointer() once it
 // is expanded.
 #define STRINGIFY(X) #X
 #define MAKE_STRING(X) STRINGIFY(X)
 
 const char kClearKeyCdmBaseDirectory[] = "ClearKeyCdm";
 
-// File name of the External ClearKey CDM on different platforms.
-const base::FilePath::CharType kExternalClearKeyCdmFileName[] =
-#if defined(OS_MACOSX)
-    FILE_PATH_LITERAL("libclearkeycdm.dylib");
-#elif defined(OS_WIN)
-    FILE_PATH_LITERAL("clearkeycdm.dll");
-#else  // OS_LINUX, etc.
-    FILE_PATH_LITERAL("libclearkeycdm.so");
-#endif
-
 ExternalClearKeyTestHelper::ExternalClearKeyTestHelper() {
   LoadLibrary();
 }
 
 ExternalClearKeyTestHelper::~ExternalClearKeyTestHelper() {
   UnloadLibrary();
 }
 
 void ExternalClearKeyTestHelper::LoadLibrary() {
   // Determine the location of the CDM. It is expected to be in the same
   // directory as the current module.
   base::FilePath cdm_base_path;
   ASSERT_TRUE(PathService::Get(base::DIR_MODULE, &cdm_base_path));
   cdm_base_path = cdm_base_path.Append(
       GetPlatformSpecificDirectory(kClearKeyCdmBaseDirectory));
-  library_path_ =
-      cdm_base_path.Append(base::FilePath(kExternalClearKeyCdmFileName));
+  library_path_ = cdm_base_path.AppendASCII(
+      base::GetNativeLibraryName(kClearKeyCdmLibraryName));
   ASSERT_TRUE(base::PathExists(library_path_)) << library_path_.value();
 
   // Now load the CDM library.
   base::NativeLibraryLoadError error;
   library_.Reset(base::LoadNativeLibrary(library_path_, &error));
   ASSERT_TRUE(library_.is_valid()) << error.ToString();
 
   // Call INITIALIZE_CDM_MODULE()
   typedef void (*InitializeCdmFunc)();
   InitializeCdmFunc initialize_cdm_func = reinterpret_cast<InitializeCdmFunc>(
       library_.GetFunctionPointer(MAKE_STRING(INITIALIZE_CDM_MODULE)));
   ASSERT_TRUE(initialize_cdm_func) << "No INITIALIZE_CDM_MODULE in library";
   initialize_cdm_func();
 }
 
 void ExternalClearKeyTestHelper::UnloadLibrary() {
   // Call DeinitializeCdmModule()
   typedef void (*DeinitializeCdmFunc)();
   DeinitializeCdmFunc deinitialize_cdm_func =
       reinterpret_cast<DeinitializeCdmFunc>(
           library_.GetFunctionPointer("DeinitializeCdmModule"));
   ASSERT_TRUE(deinitialize_cdm_func) << "No DeinitializeCdmModule() in library";
   deinitialize_cdm_func();
 }
 
 }  // namespace media