Replace SmartPointer<T> with unique_ptr<T>

src/runtime/runtime-i18n.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 
 #ifdef V8_I18N_SUPPORT
 #include "src/runtime/runtime-utils.h"
 
 #include <memory>
 
@@ skipping 783 matching lines @@
     return *isolate->factory()->NewStringFromStaticChars("ideo");
   } else {
     return *isolate->factory()->NewStringFromStaticChars("unknown");
   }
 }
 
 namespace {
 void ConvertCaseWithTransliterator(icu::UnicodeString* input,
                                    const char* transliterator_id) {
   UErrorCode status = U_ZERO_ERROR;
-  base::SmartPointer<icu::Transliterator> translit(
+  std::unique_ptr<icu::Transliterator> translit(
       icu::Transliterator::createInstance(
           icu::UnicodeString(transliterator_id, -1, US_INV), UTRANS_FORWARD,
           status));
   if (U_FAILURE(status)) return;
   translit->transliterate(*input);
 }
 
 MUST_USE_RESULT Object* LocaleConvertCase(Handle<String> s, Isolate* isolate,
                                           bool is_to_upper, const char* lang) {
   int32_t src_length = s->length();
@@ skipping 332 matching lines @@
   Handle<FixedArray> date_cache_version =
       Handle<FixedArray>::cast(isolate->eternal_handles()->GetSingleton(
           EternalHandles::DATE_CACHE_VERSION));
   return date_cache_version->get(0);
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_I18N_SUPPORT