Update //base to chromium 9659b08ea5a34f889dc4166217f438095ddc10d2

gin/modules/console.cc

 // Copyright 2013 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 "gin/modules/console.h"
 
 #include <iostream>
 
+#include "base/strings/string_piece.h"
 #include "base/strings/string_util.h"
 #include "gin/arguments.h"
 #include "gin/converter.h"
 #include "gin/object_template_builder.h"
 #include "gin/per_isolate_data.h"
 #include "gin/public/wrapper_info.h"
 
 using v8::ObjectTemplate;
 
 namespace gin {
 
 namespace {
 
 void Log(Arguments* args) {
   std::vector<std::string> messages;
   if (!args->GetRemaining(&messages)) {
     args->ThrowError();
     return;
   }
-  std::cout << JoinString(messages, ' ') << std::endl;
+  std::cout << base::JoinString(messages, " ") << std::endl;
 }
 
 WrapperInfo g_wrapper_info = { kEmbedderNativeGin };
 
 }  // namespace
 
 const char Console::kModuleName[] = "console";
 
 v8::Local<v8::Value> Console::GetModule(v8::Isolate* isolate) {
   PerIsolateData* data = PerIsolateData::From(isolate);
   v8::Local<ObjectTemplate> templ = data->GetObjectTemplate(&g_wrapper_info);
   if (templ.IsEmpty()) {
     templ = ObjectTemplateBuilder(isolate)
         .SetMethod("log", Log)
         .Build();
     data->SetObjectTemplate(&g_wrapper_info, templ);
   }
   return templ->NewInstance();
 }
 
 }  // namespace gin