[iOS] Upstream //ios/net

ios/net/clients/crn_simple_network_client_factory.mm

+// Copyright 2014 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.
+
+#import "ios/net/clients/crn_simple_network_client_factory.h"
+
+#include "base/logging.h"
+#include "base/mac/scoped_nsobject.h"
+#import "ios/net/clients/crn_forwarding_network_client.h"
+
+@interface CRNSimpleNetworkClientFactory () {
+  base::scoped_nsprotocol<Class> _clientClass;
+}
+@end
+
+@implementation CRNSimpleNetworkClientFactory
+
+- (instancetype)initWithClass:(Class)clientClass {
+  if (self = [super init]) {
+    DCHECK([clientClass isSubclassOfClass:[CRNForwardingNetworkClient class]]);
+    _clientClass.reset([clientClass retain]);
+  }
+  return self;
+}
+
+- (CRNForwardingNetworkClient*)clientHandlingAnyRequest {
+  return [[[_clientClass alloc] init] autorelease];
+}
+
+- (Class)clientClass {
+  return _clientClass;
+}
+
+@end