Add remoting::UrlRequest interface with 2 implementations

remoting/base/chromium_url_request.cc

+// 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 "remoting/base/chromium_url_request.h"
+
+#include "base/callback_helpers.h"
+#include "net/url_request/url_fetcher.h"
+#include "net/url_request/url_request_context_getter.h"
+
+namespace remoting {
+
+ChromiumUrlRequest::ChromiumUrlRequest(
+    scoped_refptr<net::URLRequestContextGetter> url_context,
+    const std::string& url) {
+  url_fetcher_ = net::URLFetcher::Create(GURL(url), net::URLFetcher::GET, this);
+  url_fetcher_->SetRequestContext(url_context.get());
+}
+
+ChromiumUrlRequest::~ChromiumUrlRequest() {}
+
+void ChromiumUrlRequest::AddHeader(const std::string& value) {
+  url_fetcher_->AddExtraRequestHeader(value);
+}
+
+void ChromiumUrlRequest::Start(const OnResultCallback& on_result_callback) {
+  DCHECK(!on_result_callback.is_null());
+  DCHECK(on_result_callback_.is_null());
+
+  on_result_callback_ = on_result_callback;
+  url_fetcher_->Start();
+}
+
+void ChromiumUrlRequest::OnURLFetchComplete(
+    const net::URLFetcher* url_fetcher) {
+  DCHECK_EQ(url_fetcher, url_fetcher_.get());
+
+  Result result;
+  result.success =
+      url_fetcher_->GetResponseCode() != net::URLFetcher::RESPONSE_CODE_INVALID;
+  if (result.success) {
+    result.status = url_fetcher_->GetResponseCode();
+    url_fetcher_->GetResponseAsString(&result.response_body);
+  }
+
+  DCHECK(!on_result_callback_.is_null());
+  base::ResetAndReturn(&on_result_callback_).Run(result);
+}
+
+ChromiumUrlRequestFactory::ChromiumUrlRequestFactory(
+    scoped_refptr<net::URLRequestContextGetter> url_context)
+    : url_context_(url_context) {}
+ChromiumUrlRequestFactory::~ChromiumUrlRequestFactory() {}
+
+scoped_ptr<UrlRequest> ChromiumUrlRequestFactory::CreateUrlRequest(
+    const std::string& url) {
+  return make_scoped_ptr(new ChromiumUrlRequest(url_context_, url));
+}
+
+}  // namespace remoting