Fix base::GetNativeLibraryName() for Mac.

base/profiler/stack_sampling_profiler_unittest.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 <stddef.h>
 #include <stdint.h>
 
 #include <cstdlib>
 
 #include "base/bind.h"
@@ skipping 253 matching lines @@
 }
 
 // Loads the other library, which defines a function to be called in the
 // WITH_OTHER_LIBRARY configuration.
 NativeLibrary LoadOtherLibrary() {
   // The lambda gymnastics works around the fact that we can't use ASSERT_*
   // macros in a function returning non-null.
   const auto load = [](NativeLibrary* library) {
     FilePath other_library_path;
     ASSERT_TRUE(PathService::Get(DIR_EXE, &other_library_path));
-    other_library_path = other_library_path.Append(FilePath::FromUTF16Unsafe(
-        GetNativeLibraryName(ASCIIToUTF16(
-            "base_profiler_test_support_library"))));
+    other_library_path = other_library_path.AppendASCII(
+        GetNativeLibraryName("base_profiler_test_support_library"));
     NativeLibraryLoadError load_error;
     *library = LoadNativeLibrary(other_library_path, &load_error);
     ASSERT_TRUE(*library) << "error loading " << other_library_path.value()
                           << ": " << load_error.ToString();
   };
 
   NativeLibrary library = nullptr;
   load(&library);
   return library;
 }
@@ skipping 690 matching lines @@
 #if defined(STACK_SAMPLING_PROFILER_SUPPORTED)
 #define MAYBE_UnloadedLibrary UnloadedLibrary
 #else
 #define MAYBE_UnloadedLibrary DISABLED_UnloadedLibrary
 #endif
 TEST(StackSamplingProfilerTest, MAYBE_UnloadedLibrary) {
   TestLibraryUnload(true);
 }
 
 }  // namespace base