[Cronet] make HttpCacheType enum more comfortative to Obj-C style.

components/cronet/ios/cronet_environment.mm

 // Copyright 2016 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 "components/cronet/ios/cronet_environment.h"
 
 #include <utility>
 
 #include "base/at_exit.h"
 #include "base/atomicops.h"
@@ skipping 294 matching lines @@
   config->ConfigureURLRequestContextBuilder(&context_builder, net_log_.get(),
                                             file_thread_.get()->task_runner());
 
   std::unique_ptr<net::MappedHostResolver> mapped_host_resolver(
       new net::MappedHostResolver(
           net::HostResolver::CreateDefaultResolver(nullptr)));
 
   context_builder.set_host_resolver(std::move(mapped_host_resolver));
 
   std::unique_ptr<net::CookieStore> cookie_store =
-      base::MakeUnique<CookieStoreIOS>(
+      base::MakeUnique<net::CookieStoreIOS>(
           [NSHTTPCookieStorage sharedHTTPCookieStorage]);
   context_builder.SetCookieAndChannelIdStores(std::move(cookie_store), nullptr);
 
   std::unordered_set<std::string> quic_host_whitelist;
   std::unique_ptr<net::HttpServerProperties> http_server_properties(
       new net::HttpServerPropertiesImpl());
   for (const auto& quic_hint : quic_hints_) {
     net::AlternativeService alternative_service(net::kProtoQUIC, "",
                                                 quic_hint.port());
     url::SchemeHostPort quic_hint_server("https", quic_hint.host(),
@@ skipping 45 matching lines @@
   event->Signal();
 }
 
 std::string CronetEnvironment::getDefaultQuicUserAgentId() const {
   return base::SysNSStringToUTF8([[NSBundle mainBundle]
              objectForInfoDictionaryKey:@"CFBundleDisplayName"]) +
          " Cronet/" + CRONET_VERSION;
 }
 
 }  // namespace cronet